Bivalve Mollusc Collection (page 2)

Gryphaea arcuata Lamarck, fossil oysters
About 190 million years old, found in the Lias clays and limestones of the Jurassic period. Commonly called Devils Toenails

Collection of molluscs
Plate 16 from The History of Rutherglen and East-Kilbride by David Ure ( 1793)

Dipsas sp
Plate 10, a holotype from Arhtur MacGregors Hans Sloane, 1994. Shell specimens showing Sir Hans Sloanes catalogue numbers

Spomdylus imperialis, imperial thorny oyster

Haliotis fulgens, green abalone
A pair of green abalone shells (Haliotis fulgens). This bivalve can been found upto 10m offshore in California

Gryphaea dilatata, devils toenail
This giant hooked oyster also known as a devils toenail originates from Sowerby, Upper Jurassic, Scarborough, Yorkshire, England

Larus argentatus, herring gull
Plate 291 from John James Audubons Birds of America, original double elephant folio (1834-35), hand-coloured aquatint. Engraved, printed and coloured by R. Havell (& Son), London

Hyolithes, primitive mollusc
Shown here is Hyolithes, a Cambrian primitive mollusc. Hyolithes had an oval or cone-shaped, elongated shell and often occured in clusters along bedding planes of Cambrian shale

Ostrea sp. oyster with pearls
Oysters are bivalve molluscs found on the sea bed. Pearls, are smooth, spherical objects which can form inside their shells. They are considered valuable and are farmed and used to make jewellery

Trigona, bivalves
Shown here are a pair of Jurassic bivalves. Bivalves are shelled creatures and first appeared in the Middle Cambrian and are still common in todays seas and oceans

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