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IRMNG taxon details

Trace fossils †

207  (urn:lsid:irmng.org:taxname:207)

accepted
Phylum
Apodichnites Hitchcock, 1844 † · unaccepted (listed as genus name in Neave,...)  
listed as genus name in Neave, however an order per original work
Chordophyceae † · unaccepted (obsolete class (misinterpretation))
Dipodichnites Hitchcock, 1844 † · unaccepted (listed as genus name in Neave,...)  
listed as genus name in Neave, however not a genus name ("order" equivalent)

Ordering

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Children Display

  1. Genus Aetonychopus Ellenberger, 1974 †
  2. Genus Aetosauripus Weiss, 1934 †
  3. Genus Akmechetosauropus Dzhalilov & Novikov, 1993 †
  4. Genus Alaichnus Mayoral et al., 2018 †
  5. Genus Algarpes Matamales-Andreu, Mujal, Galobart & Fortuny, 2025 †
  6. Genus Alococopros Hunt, Lucas, Spielmann & Lerner, 2007 †
  7. Genus Altichnus Bromley & Hanken, 1991 †
  8. Genus Amphibiopodiscus Ellenberger, 1974 †
  9. Genus Amphicopros Rakshit & Ray, 2022 †
  10. Genus Amphifaoichnus Pirrone & Buatois, 2016 †
  11. Genus Anatipeda Panin & Avram, 1962 †
  12. Genus Anguichnus Helm, Bateman, Carr, Cawthra, De Vynck, Dixon, Lockley, Stear & Venter, 2023 †
  13. Genus Anthichnium Nopcsa, 1923 †
  14. Genus Apostigmonoma Krassilov, 2008 †
  15. Genus Aptosichnus Zonneveld, Naone & Britt, 2025 †
  16. Genus Arachnostega Bertling, 1992
  17. Genus Aracoaraichnium Buck, Ghilardi, dos Reis Fernandes & Fernandes, 2017 †
  18. Genus Araneaovoius Dunlop & Braddy, 2011 †
  19. Genus Aratichnus Harris, Olariu, Melnyk, LaGrange, Konhauser & Gingras, 2024 †
  20. Genus Arcalites Grimm & Streb, 2023 †
  21. Genus Archaeonassa Fenton & Fenton, 1937 †
  22. Genus Arcuoichnus McMenamin, 2020 †
  23. Genus Ardeipeda Panin & Avram, 1962 †
  24. Family Arenicolitidae †
  25. Genus Ariichnus Runnegar, Gehling, Jensen & Saltzman, 2024 †
  26. Genus Arthraria Billings, 1872 †
  27. Genus Arthrophycus Hall, 1852 †
  28. Genus Artichnus Zhang, Uchman, Chodyn & Bromley, 2008 †
  29. Genus Asteronoma Krassilov, 2008 †
  30. Genus Augerinoichnus Minter, Lucas, Lerner & Braddy, 2008 †
  31. Genus Avetoichnus Uchman & Rattazzi, 2011 †
  32. Genus Babatagosauropus Dzhalilov & Novikov, 1993 †
  33. Genus Bacillafaex Habgood, Hass & Kerp, 2004 †
  34. Family Bactrylliidae Knaust, 2020 †
  35. Family Balanoglossitidae Mägdefrau, 1932 †
  36. Genus Batrachoidichnites Hitchcock, 1844 †
  37. Family Belichnidae Wisshak, Knaust & Bertling, 2019 †
  38. Genus Bellosichnus Genise & Sánchez, 2017 †
  39. Genus Bensoniotheca Mickle & Rothwell, 1979 †
  40. Genus Bergaueria Prantl, 1946 †
  41. Genus Bibliocoprus Hunt, Lucas, Spielmann, Cantrell & Suazo, 2012 †
  42. Genus Bilinichnus Fedonkin & Palij in Palij, Posti & Fedonkin, 1979 †
  43. Genus Biruichnus Wang, Wang, Li, Ma & Yang, 2007 †
  44. Genus Bivium Bojarski, Cierocka & Szwedo, 2025 †
  45. Genus Blattocoprolites Hinkelman in Hinkelman & Vršanská, 2020 †
  46. Genus Bornichnus Bromley & Uchman, 2003 †
  47. Genus Bovinichnus Neto de Carvalho et al., 2022 †
  48. Genus Bromackerichnus Marchetti, Logghe, Buchwitz & Fröbisch, 2025 †
  49. Genus Bromleyia López Cabrera, Mángano, Buatois, Olivero, Maples & Ekdale, 2023 †
  50. Genus Brownichnus Genise, 2000 †
  51. Genus Bulbichnus Monaco, 2016 †
  52. Genus Byakudansauropus Azuma & Takeyama, 1991 †
  53. Genus Caballichnus Casamiquela in Angulo & Casamiquela, 1982 †
  54. Genus Caletichnus Breton, 2006 †
  55. Genus Calibarichnus Casamiquela, 1964 †
  56. Genus Calorckosauripus Meyer, Marty & Belvedere, 2018 †
  57. Genus Camptosaurichnus Casamiquela in Casamiquela & Fasola, 1968 †
  58. Genus Cardinichnus Benner, Knecht & Engel, 2015 †
  59. Genus Caridolites Etheridge, Woodward & Jones, 1890 †
  60. Genus Catenoveon Krassilov & Silantieva in Krassilov, 2008 †
  61. Genus Caupokeras McKinney, 2009 †
  62. Family Celliformidae Genise, 2000 †
  63. Family Centrichnidae Wisshak, Knaust & Bertling, 2019 †
  64. Genus Charadriipeda Panin & Avram, 1962 †
  65. Genus Chiropterichnus Abbassi & Zanjani, 2022 †
  66. Genus Chorrokhosauropus Dzhalilov & Novikov, 1993 †
  67. Family Circolitidae Wisshak, Knaust & Bertling, 2019 †
  68. Genus Cochlichnus Hitchcock, 1858 †
  69. Genus Conchindusia Vialov & Sukacheva, 1976 †
  70. Genus Conchobromus Hunt, Lucas, Spielmann, Suazo & Cantrell, 2012 †
  71. Genus Contiichnus Citton, Carluccio, Nicolosi & Nicosia, 2017 †
  72. Genus Coprindusia Ivanov, 2006 †
  73. Family Coprinisphaeridae Genise, 2004 †
  74. Family Coprulidae Knaust, 2008 †
  75. Genus Corralitoichnus Fernández-Monescillo, Romero-Lebron, Pesquero, Haro, Rodríguez, Krapovickas & Tauber, 2025 †
  76. Genus Costacoprus Hunt, Lucas & Spielmann, 2012 †
  77. Genus Costaeon Krassilov, 2008 †
  78. Genus Costoveon Krassilov, 2008 †
  79. Genus Crassocoprus Hunt, Lucas, Spielmann, Cantrell, Suazo & Lerner, 2012 †
  80. Genus Crustacoprus Hunt, Lucas, Spielmann, Cantrell, Suazo & Lerner, 2012 †
  81. Genus Cruziana d'Orbigny, 1842 †
  82. Genus Cupuleon Krassilov, 2008 †
  83. Genus Curvichnus Nielsen, 2002 †
  84. Genus Dactyloichnus Grytsenko, 2016 †
  85. Genus Daedalus Rouault, 1850 †
  86. Genus Daimonelix Barbour, 1892 †
  87. Genus Dakyronocopros Hunt & Lucas, 2005 †
  88. Genus Daniacopros Milàn & Hunt, 2016 †
  89. Genus Delatorrichnus Casamiquela, 1964 †
  90. Family Dendrinidae Bromley, Wisshak, Glaub & Botquelen, 2007
  91. Genus Deuterotetrapous Nopcsa, 1923 †
  92. Genus Dikoposichnus Zhang, Wen, Hu, Benton, Zhou, Xie, Tao, Huang, Choo, Chen, Liu & Zhang, 2014 †
  93. Genus Dimorphichnus Seilacher, 1955 †
  94. Genus Diorygma Biernat, 1961 †
  95. Genus Distigmonoma Krassilov, 2008 †
  96. Genus Dolomitipes Marchetti, Voigt & Klein, 2019 †
  97. Genus Doratocoprus Hunt & Lucas, 2017 †
  98. Genus Doushantuoichnus Wang & Xu, 2007 †
  99. Genus Dromaeosauriformipes Kim et al., 2018 †
  100. Genus Elacacoprus Hunt, Lucas, Spielmann, Cantrell, Suazo & Lerner, 2012 †
  101. Genus Elongatocoprus Hunt, Lucas, Spielmann, Cantrell, Suazo & Lerner, 2012 †
  102. Genus Emergeon Krassilov, 2008 †
  103. Genus Endoconchia Runnegar in Bengtson et al., 1990 †
  104. Family Entobiaidae Wisshak, Knaust & Bertling, 2019 †
  105. Genus Entodipodiscus Ellenberger, 1974 †
  106. Genus Eoclathrus Squinabol, 1888 †
  107. Genus Eodiorygma Bassett, Popov & Holmer, 2004 †
  108. Genus Eopentapodiscus Ellenberger, 1974 †
  109. Genus Eotetrapodiscus Ellenberger, 1974 †
  110. Genus Episcopopus Ellenberger, 1974 †
  111. Genus Erevnoichnus Zonneveld, Naone & Britt, 2025 †
  112. Genus Eucoprus Hunt & Lucas, 2012 †
  113. Genus Euflabella Olivero & López Cabrera, 2013 †
  114. Genus Eustigmonoma Krassilov, 2008 †
  115. Genus Eutynichnium Nopcsa, 1923 †
  116. Genus Falcatocopros Hunt, Lucas, Spielmann & Lerner, 2007 †
  117. Genus Fascichnus Radtke & Golubic, 2005
  118. Family Favreinidae Vialov, 1978 †
  119. Genus Felderichnus Breton, 2006 †
  120. Genus Feldmannius Low & Guinot, 2010 †
  121. Genus Flagrichnus Wisshak & Porter, 2006 †
  122. Genus Folicasa Krassilov, 2008 †
  123. Genus Foveichnus Knaust, 2021 †
  124. Genus Foveon Krassilov, 2008 †
  125. Genus Fractisemita Raisanen & Hasiotis, 2018 †
  126. Genus Fraena Rouault, 1850 †
  127. Genus Funalichnus Pokorný, 2008 †
  128. Genus Fustiglyphus Vyalov, 1971 †
  129. Genus Fustinianapodus Díaz-Martínez, Suarez-Hernando, Larrasoaña, Martínez-García, Baceta & Murelaga, 2020 †
  130. Genus Gallegosichnus Casamiquela, 1964 †
  131. Genus Gandopodichnus Abbassi, 2022 †
  132. Genus Gariwerdichnus Gouramanis, Martin & Webb, 2021 †
  133. Family Gastrochaenolitidae Wisshak, Knaust & Bertling, 2019 †
  134. Genus Gigantoshiraminesauropus Azuma & Takeyama, 1991 †
  135. Genus Gluckstadtella Savage, 1971 †
  136. Family Gnathichnidae Wisshak, Knaust & Bertling, 2019 †
  137. Genus Gonfaronipes Heyler & Montenat, 1981 †
  138. Genus Gordia Emmons, 1844 †
  139. Genus Gorgonopus Naugolnykh, 2026 †
  140. Genus Gruipeda Panin & Avram, 1962 †
  141. Genus Guanshanichnus Weber, Hu, Steiner & Zhao, 2012 †
  142. Genus Gunnellichnus Zonneveld, AbdelGawad & Miller, 2021 †
  143. Genus Gyrochorte O. Heer, 1864 †
  144. Genus Gyrolithes Saporta, 1884 †
  145. Genus Gyrophyllites Glocker, 1841 †
  146. Genus Haplorygma Baliński & Sun, 2010 †
  147. Genus Haplotichnus Miller, 1889 †
  148. Genus Hardakichnium Nopcsa, 1923 †
  149. Genus Heimdallia Bradshaw, 1981 †
  150. Genus Helicolithus Azpeitia-Moros, 1933 †
  151. Genus Helminthoidichnites Fitch, 1849 †
  152. Genus Helminthopsis Heer, 1877 †
  153. Genus Hirabromus Hunt, Lucas & Spielmann, 2012 †
  154. Genus Holostigmonoma Krassilov, 2008 †
  155. Genus Hormosiroidea Schaffer, 1928 †
  156. Genus Humilis Rouault, 1850 †
  157. Genus Hyaenacoprus Hunt, Lucas & Spielmann, 2012 †
  158. Genus Hyronocopros Hunt, Lucas & Spielmann, 2005 †
  159. Genus Ichnogutta Botquelen & Mayoral, 2005 †
  160. Family Ichnoreticulinidae Wisshak, Knaust & Bertling, 2019 †
  161. Genus Ichnotorula Tavernier & Golubic, 1993 †
  162. Genus Ichthyosaurolites Hunt, Lucas & Spielmann, 2012 †
  163. Genus Iguanodonichnus Casamiquela in Casamiquela & Fasola, 1968 †
  164. Genus Ingenierichnus Casamiquela, 1964 †
  165. Genus Involuteon Krassilov, 2008 †
  166. Genus Iramena Boekschoten, 1970 †
  167. Genus Iranichnus Ghaedi, Mohammadi, Peixoto, Abdolahi & Ghilardi, 2025 †
  168. Genus Iranipeda Vialov, 1989 †
  169. Genus Isnella Senowbari-Daryan, 2007 †
  170. Genus Itsukisauropus Azuma & Takeyama, 1991 †
  171. Genus Iuloeidocoprus Hunt, Lucas & Spielmann, 2012 †
  172. Genus Jinjuichnus Jung, Kim, Xing & Choi, 2026 †
  173. Genus Kafirniganosauropus Dzhalilov & Novikov, 1993 †
  174. Genus Kailidiscus Wang, 2006 †
  175. Genus Kalocoprus Hunt, Lucas, Spielmann, Cantrell & Suazo, 2012 †
  176. Genus Karethraichnus Zonneveld, Bartels, Gunnell & McHugh, 2015 †
  177. Genus Karoopes Marchetti, Klein, Buchwitz, Ronchi, Smith, De Klerk, Sciscio & Groenewald, 2019 †
  178. Genus Katagmichnus Fernández-Monescillo, Romero-Lebron, Pesquero, Haro, Rodríguez, Krapovickas & Tauber, 2025 †
  179. Genus Katarrhedrites Hembree & Hasiotis, 2008 †
  180. Genus Katbergia Gastaldo & Rolerson, 2008 †
  181. Genus Katosauropus Ellenberger, 1972 †
  182. Genus Kharkushosauropus Dzhalilov & Novikov, 1993 †
  183. Genus Kimberichnus Ivantsov, 2013 †
  184. Genus Kingella Savage, 1971 †
  185. Genus Kladosystemites Hembree & Hasiotis, 2008 †
  186. Genus Kleitotrisauropus Ellenberger, 1972 †
  187. Genus Klemmatoica Tapanila & Holmer, 2006 †
  188. Family Krausichnidae Genise, 2004 †
  189. Genus Krinodromos Neto de Carvalho et al., 2016 †
  190. Genus Krokodilipus Nopcsa, 1923 †
  191. Genus Kunlunichnus Gong, 1999 †
  192. Genus Kuwajimasauropus Azuma & Takeyama, 1991 †
  193. Genus Lajasichnus Aceñolaza, 2004 †
  194. Genus Lamellaecylindrica Knaust, 2021 †
  195. Genus Lamonte Meyer, Xiao, Gill, Schiffbauer, Chen, Zhou & Yuan, 2014 †
  196. Genus Lancifaex Habgood, Hass & Kerp, 2004 †
  197. Genus Laterigradus Neto de Carvalho et al., 2016 †
  198. Family Lazaichnidae Genise, 2016 †
  199. Genus Lenticeon Krassilov, 2008 †
  200. Genus Leptocylindrocopros Pal, Bhaumik, Tikadar, Mahato & Anjali, 2026 †
  201. Genus Liassocopros Hunt, Lucas, Spielmann & Lerner, 2007 †
  202. Genus Linbotulitaenia Wang, Wang, Du & Wang, 2016 †
  203. Genus Lockleyichnus Plint, Helm & Dixon, 2025 †
  204. Family Lumbricariidae Schweigert, 2001 †
  205. Genus Lunulipes Getty, 2017 †
  206. Family Machichnidae Wisshak, Knaust & Bertling, 2019 †
  207. Genus Macrauchenichnus Casamiquela in Angulo & Casamiquela, 1982 †
  208. Genus Maculichna Anderson, 1975 †
  209. Genus Maichnus Genise, Victoria Sánchez, Poiré & González, 2020 †
  210. Genus Malericopros Hunt, Lucas, Spielmann & Lerner, 2007 †
  211. Genus Maneraichnus Cardonatto, Feola & Melchor, 2023 †
  212. Genus Margoveon Krassilov, 2008 †
  213. Genus Masitisisauropezus Ellenberger, 1974 †
  214. Genus Masitisisauropodiscus Ellenberger, 1974 †
  215. Genus Masitisisauropus Ellenberger, 1974 †
  216. Genus Massoveon Krassilov, 2008 †
  217. Genus Megaheteropolacopros Hunt, Lucas & Spielmann, 2005 †
  218. Genus Megakalocoprus Rummy, Halaclar & Chen, 2021 †
  219. Family Megatherichnidae Feola, Melchor, Manera de Bianco & Rojas-Manriquez, 2026 †
  220. Genus Merthykhuwaripus Abbassi, 2022 †
  221. Genus Microtetrapodiscus Ellenberger, 1972 †
  222. Genus Mirsosauropus Dzhalilov & Novikov, 1993 †
  223. Genus Molassoterrindusia Jäckel & Gregor, 2014 †
  224. Genus Molindusia Vialov, 1973 †
  225. Genus Monoaulichnus Wang, 2007 †
  226. Genus Monomorphichnus Crimes, 1970 †
  227. Genus Moyenisauropus Ellenberger, 1974 †
  228. Genus Munitusichnus Parkinson, 2016 †
  229. Genus Musculopodus Getty & Hagadorn, 2008 †
  230. Genus Musvestigium Lockley, Goodell, Evaskovich, Krall, Schumacher & Romilio, 2022 †
  231. Genus Myrowichnus G.J. Retallack, 2009 †
  232. Genus Myxomitodes Bengtson, Rasmussen & Krapez, 2007 †
  233. Genus Naktodemasis Smith, Hasiotis, Kraus & Woody, 2008 †
  234. Genus Narragansettichnus Getty, Sproule, Stimson & Lyons, 2017 †
  235. Genus Natatorichnus Lockley, Helm, Cawthra, De Vynck & Perrin, 2021 †
  236. Genus Natipes Heyler & Gand, 2001 †
  237. Genus Neantia Lebesconte, 1887 †
  238. Genus Neoeione Boyd & McIlroy, 2018 †
  239. Genus Neotrisauropus Ellenberger, 1974 †
  240. Genus Nereites MacLeay in Murchison, 1839 †
  241. Genus Nodulichnus Fodor & Dávid, 2022 †
  242. Genus Nothosauripus Kuhn, 1958 †
  243. Genus Oblongichnus Haouz, Lagnaoui & Silantiev, 2020 †
  244. Genus Occitanopodus Moreau et al., 2019 †
  245. Family Oichnidae Wisshak, Knaust & Bertling, 2019 †
  246. Genus Oldhamia E. Forbes, 1848 †
  247. Genus Olenichnus Fedonkin, 1985 †
  248. Genus Omanichnus Wetzel, Uchman, Blechschmidt & Matter, 2009 †
  249. Genus Ophionoma Krassilov, 2008 †
  250. Genus Ophistigmonoma Krassilov, 2008 †
  251. Genus Ordexallopus Lockley, Li, Xing, Guo & Matsukawa, 2018 †
  252. Genus Ornitichnites Portis, 1887 †
  253. Genus Osedacoides Karl, Gröning & Brauckmann, 2012 †
  254. Family Osteichnidae Höpner & Bertling, 2017 †
  255. Genus Ostracindusia Vialov, 1973 †
  256. Genus Ostracobromus Hunt, Lucas, Spielmann & Lockley, 2012 †
  257. Genus Palaciosichnus Casamiquela, 1964 †
  258. Genus Palaeophycus Hall, 1847 †
  259. Genus Paleodictyon Meneghini in Murchison, 1850 †
  260. Family Paleogallidae Vialov, 1975 †
  261. Family Paleominidae Vialov, 1975 †
  262. Family Paleoovoididae Vasilenko, 2005 †
  263. Family Pallichnidae Genise, 2004 †
  264. Genus Paracamelichnum Pérez-Lorente, Herrero, Herrero & Montoya, 2009 †
  265. Genus Parachirotherium Kuhn, 1958 †
  266. Genus Paraeopentapodiscus Ellenberger, 1974 †
  267. Genus Paskomella Főzy, 2019 †
  268. Genus Pectichnus Feng, Bertling, Noll, Ślipiński & Rößler, 2019 †
  269. Genus Pelindusia Vialov & Sukacheva, 1976 †
  270. Genus Pengxianpus X. Yang & D. Yang, 1987 †
  271. Genus Pennatichnus Mayoral, 1988 †
  272. Genus Pennichnus Pan, Nara, Löwemark, Miguez-Salas, Gunnarson, Iizuka, Chen & Dashtgard, 2021 †
  273. Genus Petioleon Krassilov, 2008 †
  274. Family Phagophytichnidae Vialov, 1975 †
  275. Genus Phoenicopterichnum Aramayo & Manera de Bianco, 1987 †
  276. Genus Phycodes Richter, 1850 †
  277. Genus Pilichnia Chamberlain, 1971 †
  278. Genus Pinaceocladichnus Mayoral, 1988 †
  279. Genus Piscidenticulus Pimentel, Hunt, Barroso-Barcenilla & Berrocal-Casero, 2025 †
  280. Genus Pisquiesichnus Ayranci, Wetzel, Kaminski, Kurtulus & Rabaoui, 2022 †
  281. Family Planobolidae Wisshak, Knaust & Bertling, 2019 †
  282. Genus Planolites Nicholson, 1873 †
  283. Genus Plastisauropus Ellenberger, 1974 †
  284. Genus Platicytes Garvey & Hasiotis, 2008 †
  285. Genus Platyichnus Knaust, 2021 †
  286. Genus Platytrisauropus Ellenberger, 1972 †
  287. Genus Plektecoprus Hunt, Lucas & Spielmann, 2012 †
  288. Genus Plumatindusia Sukatsheva & Vasilenko, 2026 †
  289. Genus Pluriramosus Turman, Peixoto, Marinho & Fernandes, 2021 †
  290. Family Podichnidae Wisshak, Knaust & Bertling, 2019 †
  291. Genus Polarichnus Narbonne in Narbonne, Gibling & Jones, 1979 †
  292. Genus Polychoredrites Hembree & Hasiotis, 2008 †
  293. Genus Porpaichnus Abbassi & Mustoe, 2018 †
  294. Genus Pramollichnus Baucon & Neto de Carvalho, 2008 †
  295. Genus Procolophonichnium Nopcsa, 1923 †
  296. Genus Prototrisauropodiscus Ellenberger, 1972 †
  297. Genus Protovirgularia M'Coy, 1850 †
  298. Genus Psammichnites Torell, 1870 †
  299. Genus Pulsocauda Baraboshkin, Lebedev, Beznosov & Bolshiyanov, 2026 †
  300. Genus Pustuleon Krassilov, 2008 †
  301. Genus Quadridigitus Lockley, Kim, Lim & Romilio, 2020 †
  302. Genus Radialimbricatus Lee, 2017 †
  303. Genus Ramosichnus Schweigert & Dietl, 2007 †
  304. Genus Ravatosauropus Dzhalilov & Novikov, 1993 †
  305. Genus Ravdosichnus Zonneveld, Naone & Britt, 2025 †
  306. Genus Regarosauropus Dzhalilov & Novikov, 1993 †
  307. Family Renichnidae Wisshak, Knaust & Bertling, 2019 †
  308. Genus Reniformichnus Krummeck & Bordy, 2018 †
  309. Genus Renocapsulocopros Pal, Bhaumik, Tikadar, Mahato & Anjali, 2026 †
  310. Genus Rewacopros Rakshit & Ray, 2022 †
  311. Genus Rhizocorallium Zenker, 1836 †
  312. Genus Rhynchosauroides Maidwell, 1911 †
  313. Genus Rionegrina Melchor, Feola, Cardonatto, Espinoza, Rojas-Manriquez & Herazo, 2023 †
  314. Genus Rivularites P. Fliche, 1905 †
  315. Genus Rodocanalis Schloz, 1972 †
  316. Genus Rogerbaletichnus Casamiquela, 1964 †
  317. Family Rogerellidae Codez & de Saint-Seine, 1958 †
  318. Genus Rosarichnoides Chrząstek, Muszer, Solecki & Sroka, 2018 †
  319. Genus Rosselia Dahmer, 1937 †
  320. Genus Rotundafaex Habgood, Hass & Kerp, 2004 †
  321. Genus Ruecklinichnium Kuhn, 1958 †
  322. Genus Rugalichnus Stimson, Miller, MacRae & Hinds, 2017 †
  323. Genus Ruopodosaurus Arbour, Lockley, Drysdale, Rule & Helm, 2025 †
  324. Genus Rusophycus Hall, 1852 †
  325. Family Saccomorphidae Wisshak, Knaust & Bertling, 2019 †
  326. Genus Salsariichnus Donovan, Jagt & van Knippenberg, 2019 †
  327. Genus Sarmientichnus Casamiquela, 1964 †
  328. Genus Saurocopros Hunt, Lucas, Spielmann & Lerner, 2007 †
  329. Genus Sauroeidepus Ellenberger, 1974 †
  330. Genus Sclerotites Meschinelli in Saccardo, 1892 † (accepted > unreplaced junior homonym)
  331. Genus Scolecia Radtke, 1991 †
  332. Genus Scolytolarvariumichnus Guo, 1991 †
  333. Genus Scotolithus Linnarsson, 1871 †
  334. Genus Scrollocoprus Rummy, Halaclar & Chen, 2021 †
  335. Genus Secrindusia Vialov & Sukacheva, 1976 †
  336. Genus Segmentichnus Uchman & Geyer, 2020 †
  337. Genus Seilacherichnus Gass & Noffke, 2026 †
  338. Genus Sertoveon Krassilov, 2008 †
  339. Genus Shimmelia Casamiquela, 1964 †
  340. Genus Shiraminesauropus Azuma & Takeyama, 1991 †
  341. Genus Shirkentosauropus Dzhalilov & Novikov, 1993 †
  342. Genus Sinoichnites Kuhn, 1958 †
  343. Family Siphonichnidae Knaust, 2015 †
  344. Genus Skolekichnus Ellenberger, 1974 †
  345. Genus Skolichnus Uchman, 2010 †
  346. Genus Solichnus Wisshak, Neumann, Sanna, Nielsen & Milàn, 2023 †
  347. Genus Sousatitanosauripus Gomes, Erickson, Aureliano & Ghilardi, 2024 †
  348. Genus Speiracoprus Hunt, Lucas, Spielmann, Cantrell, Suazo & Lerner, 2012 †
  349. Genus Spirophycus Häntzschel, 1962 †
  350. Genus Squamichnus Leszczyński, 2003 †
  351. Genus Stellichnus Mayoral, 1987 †
  352. Genus Stigmatophaga Krassilov, 2008 †
  353. Genus Stipanicichnus Casamiquela, 1964 †
  354. Genus Stomonoma Krassilov, 2008 †
  355. Genus Strabelocoprus Hunt, Lucas & Spielmann, 2012 †
  356. Genus Streptichnus Jensen & Runnegar, 2005 †
  357. Genus Strophocopros Hunt & Lucas, 2005 †
  358. Genus Suchopus Ellenberger, 1974 †
  359. Genus Suidichnus Neto De Carvalho et al., 2020 †
  360. Genus Sulcolithos Knaust, 2020 †
  361. Genus Sulculites Vyalov & Nesov, 1974 †
  362. Genus Symphyenoma Krassilov, 2008 †
  363. Genus Syringomorpha Nathorst, 1886 †
  364. Genus Taenidium O. Heer, 1877 †
  365. Family Talpinidae Wisshak, Knaust & Bertling, 2019 †
  366. Genus Tarrichnium Wanner, 1938 †
  367. Genus Teichichnus Seilacher, 1955 †
  368. Genus Terrindusia Vialov, 1973 †
  369. Genus Tetrapodichnites Hitchcock, 1837 †
  370. Genus Thatchtelithichnus Zonneveld, Bartels, Gunnell & McHugh, 2015 †
  371. Genus Thorichnus Pokorný, Krmíček & Sudo, 2017 †
  372. Genus Thuringia W. Remy, 1953 †
  373. Genus Tikicopros Rakshit, Bhat, Mukherjee & Ray, 2019 †
  374. Genus Tomaculopsis Breton, 2011 †
  375. Genus Tonganoxichnus Mángano, Buatois, Maples & Lanier, 1997 †
  376. Genus Tortocopros Pal, Bhaumik, Tikadar, Mahato & Anjali, 2026 †
  377. Genus Transpiroveon Krassilov, 2008 †
  378. Genus Treptichnus Miller, 1889 †
  379. Genus Trichophycus Miller & Dyer, 1878 †
  380. Genus Tridigitichnus Casamiquela, 1996 †
  381. Genus Trisaurodactylus Ellenberger, 1974 †
  382. Genus Trophoglypha Krassilov, 2008 †
  383. Genus Troponoma Krassilov, 2008 †
  384. Genus Truncocylindrocopros Pal, Bhaumik, Tikadar, Mahato & Anjali, 2026 †
  385. Genus Trusheimichnus Schlirf, 2006 †
  386. Family Trypanitidae Mägdefrau, 1932 †
  387. Genus Tubichnus Grimmberger, 2013 †
  388. Genus Tubotomaculum García-Ramos, Mángano, Piñuela, Buatois & Rodríguez-Tovar, 2014 †
  389. Genus Tursia D'Alessandro & Fürsich, 2005 †
  390. Genus Umfolozia Savage, 1971 †
  391. Genus Vaqueroichnus McMenamin, 2016 †
  392. Genus Vatnaspor Pokorný, Krmíček & Sudo, 2017 †
  393. Genus Vinculostercus Duffin & Ward, 2020 †
  394. Genus Virgoglyphus Patel, Joseph & Bhatt, 2014 †
  395. Genus Vitichnus Wetzel, Uchman, Blechschmidt & Matter, 2009 †
  396. Genus Walcottia Miller & Dyer, 1878 †
  397. Genus Wealdenichnites Kuhn, 1958 †
  398. Genus Wenganichnus Wang & Xu, 2007 †
  399. Genus Wildeichnus Casamiquela, 1964 †
  400. Genus Xylokrypta Tapanila & Roberts, 2012 †
  401. Genus Yufenites You, Liu, Zhang, Song, Zhou, Yang & Li, 2021 †
  402. Genus Zavitokichnus Michalik & Šimo, 2010 †
  403. Genus Zonarites Sternberg, 1833 †
  404. Genus Acrindusia Vialov, 1973 † accepted as Folindusia Berry, 1927 † (Treated as subgenus)
  405. Genus Apodichnites Hitchcock, 1844 † accepted as Trace fossils † (listed as genus name in Neave, however an order per original work)
  406. Genus Boscindusia Vialov, 1973 † accepted as Indusia Bosc, 1803 (unaccepted > junior subjective synonym)
  407. Genus Bothrioichnus Palmer & Plewes, 1993 † (unaccepted > nomen nudum, no diagnosis)
  408. Genus Bueckeburgichnus Kuhn, 1958 † accepted as Megalosauripus Lockley, Meyer & dos Santos, 2000 † (unaccepted > junior subjective synonym)
  409. Genus Candeleroichnus Calvo & Rivera, 2018 † (unaccepted > unavailable name, unregistered electronic publication)
  410. Genus Ceratophycus W.P. Schimper in W.P. Schimper & Schenk, 1879 † accepted as Spirophycus Häntzschel, 1962 †
  411. Genus Chondrites Solle, 1938 † (not validly published (provisional name))
  412. Genus Chondritis Göppert, 1847 † (Misspelling)
  413. Genus Chonglongpus Y.X. Yang & Y.D. Yang, 1987 † accepted as Gigandipus Hitchcock, 1856 † (unaccepted > junior subjective synonym)
  414. Genus Chongqingpus X. Yang & D. Yang, 1987 † accepted as Grallator Hitchcock, 1858 † (unaccepted > junior subjective synonym)
  415. Class Chordophyceae † accepted as Trace fossils † (obsolete class (misinterpretation))
  416. Genus Chrossochorda G. de Saporta & A.F. Marion, 1881 † accepted as Protovirgularia M'Coy, 1850 † (Misspelling (of Crossochorda))
  417. Genus Chuanchengpus X. Yang & D. Yang, 1987 † accepted as Grallator Hitchcock, 1858 † (unaccepted > junior subjective synonym)
  418. Genus Conospiron Vialov, 1969 † accepted as Gyrolithes Saporta, 1884 † (unaccepted > junior subjective synonym)
  419. Genus Coprolithus Paréjas, 1948 † (unaccepted > nomen nudum)
  420. Genus Crossochorda W.P. Schimper in W.P. Schimper & Schenk, 1879 † accepted as Protovirgularia M'Coy, 1850 † (probable synonym)
  421. Genus Daemonelix Barbour, 1897 † accepted as Daimonelix Barbour, 1892 †
  422. Genus Daimonelix Schultz, 1942 † accepted as Daimonelix Barbour, 1892 †
  423. Genus Daimonhelix Fuchs, 1895 † accepted as Daimonelix Barbour, 1892 †
  424. Family Delatorrichnidae Bordy, Rampersadh, Abrahams, Lockley & Head, 2020 † (unaccepted > unavailable name, unregistered electronic publication)
  425. Genus Detrindusia Sukacheva, 1980 † accepted as Folindusia Berry, 1927 † (Treated as subgenus)
  426. Genus Dgkhansauropterus Malkani, 2021 † accepted as Dgkhansaurus Malkani, 2019 † (unaccepted > junior subjective synonym, probably unavailable)
  427. Genus Diapasolutum Kuss & Senowbari-Daryan, 1992 † (unaccepted > nomen nudum, not validly published)
  428. Genus Dipodichnites Hitchcock, 1844 † accepted as Trace fossils † (listed as genus name in Neave, however not a genus name ("order" equivalent))
  429. Genus Echinindusia Vialov & Sukacheva, 1976 † accepted as Folindusia Berry, 1927 † (Treated as subgenus)
  430. Family Entomoothecichnidae Lee, Famoso & Lin, 2024 † (unaccepted > unavailable name, unregistered electronic publication)
  431. Genus Fasciculus Radtke, 1991 accepted as Fascichnus Radtke & Golubic, 2005 (unaccepted > junior homonym)
  432. Genus Feldmannia Casadío, Marenssi & Santillana, 2001 † accepted as Feldmannius Low & Guinot, 2010 † (unaccepted > junior homonym, junior homonym of Feldmannia Guinot & Tavares, 2001 (Decapoda))
  433. Genus Foggara Breton, Jäger & Kočí, 2020 † (unaccepted > unavailable name, unregistered electronic publication)
  434. Genus Frugindusia Sukacheva, 1979 † accepted as Folindusia Berry, 1927 † (Treated as subgenus)
  435. Genus Funiculichnus LoBue, 2010 † (unaccepted > nomen nudum, not validly published)
  436. Genus Gyrochorda Schimper in Zittel, 1879 † (Misspelling)
  437. Genus Gyrochordae Schimper in Zittel, 1879 † (Misspelling)
  438. Genus Hemicanalis Chiplonkar & Ghare, 1977 † accepted as Arachnostega Bertling, 1992
  439. Genus Hemisphaerichnus Sennikov, 2022 † accepted as Rusophycus Hall, 1852 † (unaccepted > junior subjective synonym, proposed as subgenus)
  440. Genus Heterotheca M. Benson, 1922 † accepted as Bensoniotheca Mickle & Rothwell, 1979 † (junior homonym)
  441. Genus Ichnogyrus Bown & Kraus, 1983 † accepted as Gyrolithes Saporta, 1884 † (unaccepted > junior subjective synonym)
  442. Genus Iranipedia Vialov, 1989 † accepted as Iranipeda Vialov, 1989 † (unaccepted > misspelling - incorrect subsequent spelling, Misspelling in Nomenclator Zoologicus)
  443. Genus Jinlijingpus X. Yang & D. Yang, 1987 † accepted as Eubrontes Hitchcock, 1845 † (unaccepted > junior subjective synonym)
  444. Genus Kleithrichnus Breton, Jäger & Kočí, 2020 † (unaccepted > unavailable name, unregistered electronic publication)
  445. Genus Linbotulichnus Li & Ding in Ding et al., 1996 † (unaccepted > nomen nudum)
  446. Genus Luancaia Mángano, Piñuela, Buatois, Ortega-Hernández, Rodríguez-Tovar & García-Ramos, 2021 † accepted as Luancaina Mángano, Piñuela, Buatois, Ortega-Hernández, Rodríguez-Tovar & García-Ramos, 2021 † (unaccepted > unavailable name, unregistered electronic publication and no type species)
  447. Genus Luancaina Mángano, Piñuela, Buatois, Ortega-Hernández, Rodríguez-Tovar & García-Ramos, 2021 † (unaccepted > unavailable name, unregistered electronic publication)
  448. Genus Lunula Hitchcock, 1865 † accepted as Lunulipes Getty, 2017 † (junior homonym)
  449. Family Marineropodidae Lockley, Cawthra, De Vynck, Helm, McCrea & Nel, 2019 † (unaccepted > unavailable name, Name not based an an avilable genus (art. 13.2.))
  450. Genus Megadictyon Kozur, Krainer & Mostler, 1996 † accepted as Paleodictyon Meneghini in Murchison, 1850 †
  451. Genus Megagyrolithes Gaillard, 1980 † accepted as Gyrolithes Saporta, 1884 † (unaccepted > junior subjective synonym)
  452. Genus Megaichnites X. Yang & D. Yang, 1987 † accepted as Kayentapus Welles, 1971 † (unaccepted > junior subjective synonym)
  453. Genus Megascolytinus Petrov, 2013 † accepted as Scolytolarvariumichnus Guo, 1991 † (unaccepted > junior subjective synonym)
  454. Genus Microptychoites Dong in Dong et al., 1984 † (unaccepted > nomen nudum)
  455. Genus Mixtindusia Sukacheva, 1980 † accepted as Terrindusia Vialov, 1973 † (Treated as subgenus)
  456. Genus Murchisonites H.R. Göppert, 1859 † accepted as Oldhamia E. Forbes, 1848 †
  457. Genus Olivellites Fenton & Fenton, 1937 † accepted as Psammichnites Torell, 1870 † (synonym)
  458. Genus Palaeodictyon O. Heer, 1864 † accepted as Paleodictyon Meneghini in Murchison, 1850 † (unaccepted > misspelling - incorrect subsequent spelling)
  459. Genus Paleophycus James, 1879 † (Misspelling)
  460. Genus Planalites Walcott, 1899 † (Misspelling)
  461. Genus Plangtichnus Miller, 1889 † accepted as Treptichnus Miller, 1889 †
  462. Genus Profolindusia Sukacheva, 1980 † accepted as Folindusia Berry, 1927 † (Treated as subgenus)
  463. Genus Protopalaeodictyon Ksiazkiewicz, 1970 † (Misspelling)
  464. Genus Protovirgularia M'Coy in Sedgwick & McCoy, 1851 † accepted as Protovirgularia M'Coy, 1850 † (later usage (?))
  465. Genus Reticulum C. de Stefani, 1879 † accepted as Palaeodictyon O. Heer, 1864 † accepted as Paleodictyon Meneghini in Murchison, 1850 † (unaccepted > junior objective synonym, superfluous replacement name)
  466. Genus Retiphycus Ulrich, 1904 † accepted as Paleodictyon Meneghini in Murchison, 1850 † (unaccepted > junior subjective synonym)
  467. Genus Rhysophycus Schimper in Zittel, 1879 † (Misspelling)
  468. Family Rodgerellidae † accepted as Rogerellidae Codez & de Saint-Seine, 1958 † (unaccepted > misspelling - incorrect subsequent spelling)
  469. Genus Runia Marek, 1982 † accepted as Rodocanalis Schloz, 1972 † (unaccepted > junior subjective synonym)
  470. Genus Sedilichnus Muller, 1977 † (unaccepted > nomen nudum, conditional proposed atelonym)
  471. Genus Spirindusia Vialov & Sukacheva, 1976 † accepted as Folindusia Berry, 1927 † (Treated as subgenus)
  472. Genus Spiroscolex Torell, 1869 † accepted as Gyrolithes Saporta, 1884 † (unaccepted > junior subjective synonym)
  473. Genus Transexcrementum Godfrey & Collareta, 2022 † (unaccepted > unavailable name, unregistered electronic publication)
  474. Genus Trifurcus Plewes, 1996 † (unaccepted > nomen nudum, unpublished thesis)
  475. Family Zapfellidae Codez & Saint-Seine, 1958 † accepted as Rogerellidae Codez & de Saint-Seine, 1958 †
  476. Genus Zizhongpus X. Yang & D. Yang, 1987 † accepted as Kayentapus Welles, 1971 † (unaccepted > junior subjective synonym)
  477. Genus Acanthichnus Hitchcock, 1858 † (uncertain, unassessed)
  478. Genus Acanthorhaphe Ksiazkiewicz, 1970 † (uncertain, unassessed)
  479. Genus Acripes Matthew, 1909 † (uncertain, unassessed)
  480. Genus Actinosalpinx Sokolov, 1962 † (uncertain, unassessed)
  481. Genus Aggregatella Elliott, 1962 † (uncertain > nomen dubium)
  482. Genus Akinereites Katto, 1964 † (uncertain, unassessed)
  483. Genus Ampelichnus Hitchcock, 1865 † (uncertain, unassessed)
  484. Genus Ancientia Ross, 1967 † (uncertain, unassessed)
  485. Genus Anemonichnus Chamberlain & Clark, 1973 † (uncertain, unassessed)
  486. Genus Anmolpakhiperus Malkani, 2021 † (uncertain, existence of a print version dubious)
  487. Genus Annelidichnium Kuhn, 1937 † (uncertain, unassessed)
  488. Genus Arenituba Stanley & Pickerill, 1995 † (uncertain, unassessed)
  489. Genus Argonevis Kozur & Mostler, 1972 † (uncertain, unassessed)
  490. Genus Arthropodichnus Chiplonkar & Badwe, 1970 † (uncertain, unassessed)
  491. Genus Arthropodichnus Gevers in Gevers, Frakes, Edwards & Marzolf, 1971 † (uncertain, unassessed)
  492. Genus Arthrotelsonichnus Chiplonkar & Ghare, 1975 † (uncertain, unassessed)
  493. Genus Artichnus Zakharov, 1972 † (uncertain, unassessed)
  494. Genus Asterichnus Bandel, 1967 † (uncertain, unassessed)
  495. Genus Asturichnus Garcia-Ramos, 1977 † (uncertain, unassessed)
  496. Genus Atlantaia Borrello, 1967 † (uncertain, unassessed)
  497. Genus Ayalaites Noda & Miranda, 1974 † (uncertain, unassessed)
  498. Genus Bascomella Morningstar, 1922 † (uncertain > nomen dubium, composite taxon)
  499. Genus Beaconichnus Gevers, 1973 † (uncertain, unassessed)
  500. Genus Bifasciculus Volk, 1960 † (uncertain, unassessed)
  501. Genus Bisulcus Hitchcock, 1865 † (uncertain, unassessed)
  502. Genus Bogschites Kozur & Mostler, 1972 † (uncertain, unassessed)
  503. Genus Bonariensia Borrello, 1967 † (uncertain, unassessed)
  504. Genus Bostrichophyton S. Squinabol, 1890 † (uncertain, unassessed)
  505. Genus Bostricophyton Squinabol † (uncertain > nomen dubium, Misspelling)
  506. Genus Brookvalichnus Webby, 1970 † (uncertain, unassessed)
  507. Genus Brutalichnus Mikuláš, Kadlecová, Fejfar & Dvořák, 2006 † (uncertain > nomen dubium, producer action not obvious)
  508. Genus Buchholzbrunnichnus Germs, 1973 † (uncertain, unassessed)
  509. Genus Burrinjuckia Chatterton, 1975 † (uncertain, unassessed)
  510. Genus Chaetophorites Pratje, 1922 † (uncertain > nomen dubium, poorly defned; types lost)
  511. Genus Chapadmalidium Borrello, 1967 † (uncertain, unassessed)
  512. Genus Chevronichnus Hakes, 1976 † (uncertain, unassessed)
  513. Genus Chiltansauroperus Malkani, 2021 † (uncertain, existence of a print version dubious)
  514. Genus Chimaerichnus Hitchcock, 1871 † (uncertain > nomen dubium)
  515. Genus Chomatichnus Donaldson & Simpson, 1962 † (uncertain, unassessed)
  516. Genus Chondrites Sternberg, 1833 † (uncertain, unassessed)
  517. Genus Chondritoides Borrello, 1966 † (uncertain, unassessed)
  518. Genus Chondrorhaphe Seilacher, 1977 † (uncertain, unassessed)
  519. Genus Climacodichnus Hitchcock, 1865 † (uncertain, unassessed)
  520. Genus Clionoida Smith, 1910 † (uncertain > nomen dubium, no defnition)
  521. Genus Cobalia Étallon, 1859 † (uncertain > nomen dubium, without illustration and holotype currently lost)
  522. Genus Cochlea Hitchcock, 1858 † (uncertain, unassessed)
  523. Genus Cornuvacites Kozur & Mostler, 1972 † (uncertain, unassessed)
  524. Genus Cylindrichnus Bandel, 1967 † (uncertain, unassessed)
  525. Genus Cyphonichnus Karaszewski, 1974 † (uncertain, unassessed)
  526. Genus Dazeodesma Borrello, 1967 † (uncertain, unassessed)
  527. Genus Dendrorhaphe Seilacher, 1977 † (uncertain, unassessed)
  528. Genus Dgkhansaurus Malkani, 2019 † (uncertain, existence of a print version dubious)
  529. Genus Didymaulichnus Young, 1972 † (uncertain, unassessed)
  530. Genus Dinosaurichnium Weiss, 1934 (uncertain > unassessed)
  531. Genus Diplopodomorpha Chiplonkar & Badwe, 1970 † (uncertain, unassessed)
  532. Genus Discotomaculum Chiplonkar & Badve, 1972 † (uncertain, unassessed)
  533. Genus Echinospira Girotti, 1971 † (uncertain, unassessed)
  534. Genus Equicoprus Vyalov, 1976 † (uncertain, unassessed)
  535. Genus Erinea Kozur & Mostler, 1972 † (uncertain, unassessed)
  536. Genus Eugyrichnites Ami, 1905 † (uncertain, unassessed)
  537. Genus Fanerocoelia Kozur & Mostler, 1972 † (uncertain, unassessed)
  538. Genus Fascifodina Osgood, 1970 † (uncertain, unassessed)
  539. Genus Feddenichnus Chiplonkar & Borkar, 1973 † (uncertain, unassessed)
  540. Genus Folindusia Berry, 1927 † (uncertain, unassessed)
  541. Genus Furculosus Roniewicz & Pienkowski, 1977 † (uncertain, unassessed)
  542. Genus Gaspeichnus Hunt, Lucas & Klein, 2018 † (uncertain > nomen dubium)
  543. Genus Gochtia Eisenack, 1968 † (uncertain, unassessed)
  544. Genus Goniadichnites Matthew, 1891 † (uncertain, unassessed)
  545. Genus Graysonia Stephenson, 1952 † (uncertain > nomen dubium, composite trace fossil)
  546. Genus Gyrichnites Whiteaves, 1883 (uncertain, unassessed)
  547. Genus Haguenowia Étallon, 1860 † (uncertain > nomen dubium, without illustration and holotype currently lost)
  548. Genus Halimedides J. Lorenz von Liburnau, 1902 † (uncertain, unassessed)
  549. Genus Halysichnus Hitchcock, 1858 † (uncertain, unassessed)
  550. Genus Harinellites Kozur & Mostler, 1972 † (uncertain, unassessed)
  551. Genus Hauthaleia Borrello, 1967 † (uncertain, unassessed)
  552. Genus Helicorhape Ksiazkiewicz, 1970 † (uncertain, unassessed)
  553. Genus Helicosalpinx Oekentorp, 1969 † (uncertain, unassessed)
  554. Genus Helminthorhaphe Seilacher, 1977 † (uncertain, unassessed)
  555. Genus Himalayadrindoperus Malkani, 2021 † (uncertain, existence of a print version dubious)
  556. Genus Hitachia Hatai & Noda, 1972 † (uncertain, unassessed)
  557. Genus Huanglongpus X. Yang & D. Yang, 1987 † (uncertain > nomen dubium)
  558. Genus Ichnium Sollas, 1900 † (uncertain, unassessed)
  559. Genus Imbrichnus Hallam, 1970 † (uncertain, unassessed)
  560. Genus Indusia Bosc, 1803 (uncertain, unassessed)
  561. Genus Irinella Kozur & Mostler, 1972 † (uncertain, unassessed)
  562. Genus Isnardia Borrello, 1967 † (uncertain, unassessed)
  563. Genus Isopodichnus Bornemann, 1889 † (uncertain, taxonomic status unclear)
  564. Genus Keidelasma Borrello, 1967 † (uncertain, unassessed)
  565. Genus Ladinella Kraus & Ott, 1968 † (uncertain, unassessed)
  566. Genus Lamellitubus Kraus & Ott, 1968 † (uncertain, unassessed)
  567. Genus Laminites Ghent & Henderson, 1966 † (uncertain > unassessed)
  568. Genus Lanicoidichna Chamberlain, 1971 † (uncertain, unassessed)
  569. Genus Limolepis Kozur & Mostler, 1972 † (uncertain, unassessed)
  570. Genus Lingulichnus Hakes, 1976 † (uncertain, unassessed)
  571. Genus Lobichnus Kemper, 1968 † (uncertain, unassessed)
  572. Genus Macanopsis Macsotay, 1967 † (uncertain, unassessed)
  573. Genus Malakhelisauroperus Malkani, 2021 † (uncertain, existence of a print version dubious)
  574. Genus Mammillichnis Chamberlain, 1971 † (uncertain, unassessed)
  575. Genus Margaritichnus Bandel, 1973 † (uncertain, unassessed)
  576. Genus Micatuba Chamberlain, 1971 † (uncertain, unassessed)
  577. Genus Microphycus G.F. Matthew, 1890 † (uncertain, no modern re-study)
  578. Genus Microspherichnus Hakes, 1976 † (uncertain, unassessed)
  579. Genus Montfortia Lebesconte, 1887 † (uncertain > nomen dubium, multiple forms included in original genus concept)
  580. Genus Nankaites Katto, 1964 † (uncertain, unassessed)
  581. Genus Naviculichnium Ksiazkiewicz, 1977 † (uncertain, unassessed)
  582. Genus Nemotapis Kozur & Mostler, 1972 † (uncertain, unassessed)
  583. Genus Nulliporites Heer, 1865 † (uncertain > nomen dubium)
  584. Genus Odotula Hayasaka & Aoyana, 1975 † (uncertain, unassessed)
  585. Genus Ornithopodichnites Llompart, Casanovas & Santafe, 1984 † (uncertain > nomen dubium)
  586. Genus Oscillorhaphe Seilacher, 1977 † (uncertain, unassessed)
  587. Genus Palaeocerambichnius Müller-Stoll, 1989 † (uncertain > nomen dubium)
  588. Genus Paleoscopimera Katto, 1962 † (uncertain > nomen dubium)
  589. Genus Paraophidichnium Demathieu, 1977 † (uncertain, unassessed)
  590. Genus Pararusophycus Ksiazkiewicz, 1977 † (uncertain, unassessed)
  591. Genus Paratisoa Gaillard, 1972 † (uncertain, unassessed)
  592. Genus Pashtosauroperus Malkani, 2021 † (uncertain, existence of a print version dubious)
  593. Genus Pentichnus Maerz, Kaesler & Hakes, 1976 † (uncertain, unassessed)
  594. Genus Petalichnus Miller, 1880 † (uncertain, unassessed)
  595. Genus Phagolignichnus Vyalov, 1975 † (uncertain, unassessed)
  596. Genus Phyllochorda W.P. Schimper in W.P. Schimper & Schenk, 1879 † (uncertain, unassessed)
  597. Genus Piscindusia Jarzembowski, 1995 † (uncertain, unassessed)
  598. Genus Placerotapis Kozur & Mostler, 1972 † (uncertain, unassessed)
  599. Genus Potiria Borrello, 1967 † (uncertain, unassessed)
  600. Genus Protopaleodictyon Ksiazkiewicz, 1970 † (uncertain, unassessed)
  601. Genus Pseudocucumaria Katto, 1974 † (uncertain > taxon inquirendum)
  602. Genus Pseudodesmograpton Macsotay, 1967 † (uncertain, unassessed)
  603. Genus Pteridichnites Clarke & Swartz, 1913 † (uncertain, unassessed)
  604. Genus Ptilichnus Hitchcock, 1858 † (uncertain, unassessed)
  605. Genus Punctorhaphe Seilacher, 1977 † (uncertain, unassessed)
  606. Genus Pygospioides Hantzschel & Reineck, 1968 † (uncertain, unassessed)
  607. Genus Quebecichnus Hoffman, 1972 † (uncertain, unassessed)
  608. Genus Rabdichnites Dawson, 1873 † (uncertain, unassessed)
  609. Genus Radiichnus Karaszewski, 1973 † (uncertain, unassessed)
  610. Genus Radimonis Kozur & Mostler, 1972 † (uncertain, unassessed)
  611. Genus Ramidictyon Seilacher, 1977 † (uncertain, unassessed)
  612. Genus Rugoinfractus Paly, 1974 † (uncertain, unassessed)
  613. Genus Sabularia Ksiazkiewicz, 1977 † (uncertain, unassessed)
  614. Genus Saerichnites Billings, 1866 † (uncertain, unassessed)
  615. Genus Samanadrindoperus Malkani, 2021 † (uncertain, existence of a print version dubious)
  616. Genus Schilleria Borrello, 1967 † (uncertain, unassessed)
  617. Genus Scyphindusia Sukacheva, 1985 † (uncertain, unassessed)
  618. Genus Spiralites Wincierz, 1973 † (uncertain, unassessed)
  619. Genus Spirochorda W.P. Schimper in W.P. Schimper & Schenk, 1879 † (uncertain, unassessed)
  620. Genus Spongeliomorpha G. de Saporta, 1887 † (uncertain, unassessed)
  621. Genus Squamodictyon Vialov & Golev, 1960 † (uncertain, unassessed)
  622. Genus Steigerwaldichnium Kuhn, 1937 † (uncertain, unassessed)
  623. Genus Stichus Etheridge, 1904 † (uncertain > nomen dubium, poor illustration)
  624. Genus Strechoritina Kozur & Mostler, 1972 † (uncertain, unassessed)
  625. Genus Sustergichnus Chamberlain, 1971 † (uncertain, unassessed)
  626. Genus Tandilinia Borrello, 1967 † (uncertain, unassessed)
  627. Genus Taphrhelminthoida Ksiazkiewicz, 1977 † (uncertain, unassessed)
  628. Genus Tasmanadia Chapman, 1929 † (uncertain, unassessed)
  629. Genus Tetraphyllum Hosius & von der Marck, 1880 † (uncertain, not used in recent literature; a nom. rej. prop. in botany (only))
  630. Genus Torrowangea Webby, 1970 † (uncertain, unassessed)
  631. Genus Toxichnus Hitchcock, 1865 † (uncertain, unassessed)
  632. Genus Traucumichnis Ksiazkiewicz, 1977 † (uncertain, unassessed)
  633. Genus Trilobitichnus Gevers, Frakes, Edwards & Marzolf, 1971 † (uncertain, unassessed)
  634. Genus Triplifaex Breton, 2011 † (uncertain > nomen dubium)
  635. Genus Tuberculichnus Kslazkiewicz, 1977 † (uncertain, unassessed)
  636. Genus Tubulichnium Ksiazkiewicz, 1977 † (uncertain, unassessed)
  637. Genus Tuojiangpus X. Yang & D. Yang, 1987 † (uncertain > nomen dubium)
  638. Genus Tylichnus Osgood, 1970 † (uncertain, unassessed)
  639. Genus Uchirites Macsotay, 1967 † (uncertain, unassessed)
  640. Genus Umbonichnus Karaszewski, 1974 † (uncertain, unassessed)
  641. Genus Unarites Macsotay, 1967 † (uncertain, unassessed)
  642. Genus Upsiloides Byrne & Branson, 1941 † (uncertain, unassessed)
  643. Genus Utatsuia Hatai & Murata, 1976 † (uncertain, unassessed)
  644. Genus Uvanogelia Kozur & Mostler, 1972 † (uncertain, unassessed)
  645. Genus Venerella Kozur & Mostler, 1972 † (uncertain, unassessed)
  646. Genus Vermiculites Rouault, 1850 † (uncertain > nomen dubium, poorly described, no illustration)
  647. Genus Vermiculites Bronn, 1848 † (uncertain, refer note)
  648. Genus Vermitubus Hatai, Murata & Kawakami, 1972 † (uncertain, unassessed)
  649. Genus Vucetichia Borrello, 1967 † (uncertain, unassessed)
  650. Genus Walpia White, 1929 † (uncertain, unassessed)
  651. Genus Xenokalymma Eisenack, 1968 † (uncertain, unassessed)
  652. Genus Yaravidium Borrello, 1967 † (uncertain, unassessed)
marine
fossil only
Not documented
Taxonomic remark Nomenclature for trace fossils (under their technical name ichnofossils) is governed under the zoological Code, as...  
Taxonomic remark Nomenclature for trace fossils (under their technical name ichnofossils) is governed under the zoological Code, as ichnogenus and ichnospecies names. As noted by Bertling et al., 2006, trace fossils originating from the actions of non-animal groups such as plants, fungi, algae, etc. may also be included here. In rare cases where the trace fossil is preserved in association with its producer, it is still appropriate to name the trace fossil separately from the biological taxon that appears to have produced it. Current practice in IRMNG (which may change in future) is to treat "biological erosion traces" here (per, for example the treatment of Wisshak et al., 2019), but to treat fossil trackways under the higher taxonomy of their supposed makers (e.g. as Archnida, Reptilia, Aves, etc.). [details]
IRMNG (2024). Trace fossils †. Accessed at: https://www.irmng.org/aphia.php?p=taxdetails&id=207 on 2026-06-12
Date
action
by
2010-05-31 22:00:00Z
created
2011-12-31 23:00:00Z
changed
2022-04-25 05:22:10Z
changed

basis of record Häntzschel, W. (1975). Miscellanea Supplement 1. Trace fossils and Problematica, second edition. In Treatise on Invertebrate Paleontology, Part W., Edited by: Moore, R. C. W1–W269. New York and Lawrence: Geological Society of America and University of Kansas. , available online at https://doi.org/10.17161/tip.v0i0.5426 [details] 

additional source Wisshak, M.; Knaust, D.; Bertling, M. (2019). Bioerosion ichnotaxa: review and annotated list. <em>Facies.</em> 65: 24., available online at https://doi.org/10.1007/s10347-019-0561-8
note: Used for taxonomy of erosion traces at this time [details] 

additional source Bertling, M.; Braddy, S. J.; Bromley, R. G.; Demathieu, G. R.; Genise, J.; Mikuláš, R.; Nielsen, J. K.; Nielsen, K. S. S.; Rindsberg, A. K.; Schlirf, M.; Uchman, A. (2006). Names for trace fossils: a uniform approach. <em>Lethaia.</em> 39(3): 265-286., available online at https://doi.org/10.1080/00241160600787890 [details] 

current name source Häntzschel, W. (1975). Miscellanea Supplement 1. Trace fossils and Problematica, second edition. In Treatise on Invertebrate Paleontology, Part W., Edited by: Moore, R. C. W1–W269. New York and Lawrence: Geological Society of America and University of Kansas. , available online at https://doi.org/10.17161/tip.v0i0.5426 [details] 

extant flag source Häntzschel, W. (1975). Miscellanea Supplement 1. Trace fossils and Problematica, second edition. In Treatise on Invertebrate Paleontology, Part W., Edited by: Moore, R. C. W1–W269. New York and Lawrence: Geological Society of America and University of Kansas. , available online at https://doi.org/10.17161/tip.v0i0.5426 [details] 

original description (of Dipodichnites Hitchcock, 1844 †) Amer. J. Sci., 47
page(s): 317 [details] 

original description (of Apodichnites Hitchcock, 1844 †) Amer. J. Sci., (2) 47
page(s): 292 [details] 
Unreviewed
Habitat Marine and nonmarine [details]

Taxonomic remark Nomenclature for trace fossils (under their technical name ichnofossils) is governed under the zoological Code, as ichnogenus and ichnospecies names. As noted by Bertling et al., 2006, trace fossils originating from the actions of non-animal groups such as plants, fungi, algae, etc. may also be included here. In rare cases where the trace fossil is preserved in association with its producer, it is still appropriate to name the trace fossil separately from the biological taxon that appears to have produced it. Current practice in IRMNG (which may change in future) is to treat "biological erosion traces" here (per, for example the treatment of Wisshak et al., 2019), but to treat fossil trackways under the higher taxonomy of their supposed makers (e.g. as Archnida, Reptilia, Aves, etc.). [details]

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