Mollusca Collection (page 9)

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

Octopus illustration
Plate 20, watercolour by Sir Joseph Dalton Hooker from the plate collection of the Murray Library

Squid illustration
Tableau 3 from Albertus Sebas Thesaurus, Vol 3, 1759

Bulinus sp. Biomphalaria sp. African snails
A collection of shells of species involved in the life cycle of blood flukes of the genus Schistosoma which gives rise to the disease Schistosomiasis in humans

Partula mirabilis, P. mooreana, French Polynesian tree snai

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

Ammonite selection
Three ammonites as follows: (Left to right) Oistoceras wrighti; Asteroceras obtusum (zonal index species); Tragophylloceras loscombi all specimens originate from the Jurassic rocks near Lyme Regis

Athleta luctator, fossil sea snail
A fossil sea snail (Athleta luctator) dating from the late Eocene rocks around Barton, England

Orthoconic nautiloid, originating from near Castleton, England. The more unusual straight-shelled species belonging to the same group as ammonites and to todays living nautilus

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

Asteroceras obtusum, ammonite
Shown here is a Jurassic ammonite. Ammonites are an extinct group of fossil cephalopods related to todays Nautilus

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

Asteroceras marstonensis and Promicroceras, ammonites

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