Subject ASC0001lsc
The Quarterly journal of the Geological Society of London.
v.66 (1910), Page 250 (1910)
Smithsonian Libraries
BHL Page 35446676
Keywords
Mollusca snail shell fossil castropoda front-view shell magnified texture sample back of shell side of shell side of shell containing opening close-up side-view shell found in slab of sediment side of shell without opening sediment filled with fossils fossils shells geological society of london