Bivalves are among the oldest hard fossils, showing up in the Early Cambrian more than 500 million years ago. It is believed that a permanent change in ocean or atmospheric chemistry made it possible for organisms to secrete hard shells of calcium carbonate.
Geological Age: Jurassic, Lower Lias.
Fossil Location: Hook Cliff, Glos/ Yorkshire
This common bivalve is usually known as the 'Devils Toenail'
Geological Age: Jurassic, Lower Lias, Ibex zone
Fossil Location: Blockley Quarry, Nr, Moreton, Glos.
Sizes of specimens vary from 2" - 3".
Price: £1.50 / €1.88 (Excluding: VAT at 17.5%)
Geological Age: Jurassic, Lower Lias, Ibex zone
Fossil Location: Blockley Quarry, Nr, Moreton, Glos.
Sizes of specimens vary from 2" - 3".
Price: £2.00 / €2.50 (Excluding: VAT at 17.5%)
