Subject ASC0003s8g
The geological magazine, or, Monthly journal of geology.
[Decade 1]:v. 4 (1867), Page 148 (1867)
Harvard University, Museum of Comparative Zoology, Ernst Mayr Library
BHL Page 32511991
Keywords
Cheirolepis Old Red Sandstone James Powrie Aggazis branchiostegal rays ray-finned fish lepidosteidae crossoterydigae head plates cheirolepsis cummingiae Head-plates ventral aspect fish illustration shapes Fish Fossils