Williamson, W. C. (1880). On the organization of the fossil plants of the coal-measures.—Part X. Including an examination of the supposed radiolarians of the carboniferous rocks. Philosophical transactions of the Royal Society of London. 171(2): 493-539.
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Williamson, W. C.
1880
On the organization of the fossil plants of the coal-measures.—Part X. Including an examination of the supposed radiolarians of the carboniferous rocks
Philosophical transactions of the Royal Society of London