• Archaeocryptolaria flabelloides Chapman & Thomas, 1936 †
• Archaeocryptolaria recta †
• Archaeocryptolaria skeatsi Chapman, 1919 †
• Cactograptus crassus Ruedemann, 1908 †
• Cactograptus flexispinosus Chapman, W D & Thomas, 1936 †
• Cactograptus plumigerus Chapman, W D & Thomas, 1936 †
• Mastigograptus arundinaceus (Hall, 1847) †
• Mastigograptus circinalis Ruedemann, 1908 †
• Mastigograptus tenuiramosus (Walcott, 1879) †
• Protohalecium hallianum Chapman, W D & Thomas, 1936 †
• Sphenoecium discoidalis Chapman, W D & Thomas, 1935 †
• Sphenoecium filicoides (Chapman, 1917) †