Subject ASC000107v

The Quarterly journal of the Geological Society of London.
v.58 (1902), Page [112] (1902)
Smithsonian Libraries
BHL Page 41675541

Keywords

biology invertebrates mollusk fossil operculum cone Cambrian Malvern Hills shell bivalves opercula internal cast mollusc Hyolithus fistula cambrian malvern hills apex Teretes lower cambrian middle cambrian Orthotheca Fossil Malvern

Contributors

Species