Subject ASC00010gt
The Quarterly journal of the Geological Society of London.
v.58 (1902), Page 83 (1902)
Smithsonian Libraries
BHL Page 41675510
Keywords
restoration magnified fossil marine crustacean Groom fossil biology microscopic observation malvern Polyphyma Lapworthi microscopic drawing constituting parts (a to h) cross section of two semi-circle valves of subtriangular lobe