Here's a fossil I found in iron ore quarries in Northants.
It has the fab nickname of a Devil's Toenail.
That captures the imagination !
It is an extinct Fossil Oyster that is common in Jurassic age rocks.
These Fossil Oysters lived in large numbers on the sea floor resting in
soft sediment in warm, quiet environments.
The thick shell acted as protection against predators such as lobsters and crabs,
as well as predatory gastropods.
The uneven texture of this fossil shell is typical of oysters.
The concentric ridges and furrows on the shell are ‘growth lines’ and
were produced as the animal grew.
This Fossil Oyster is a bivalve mollusc because it has a shell made up of two
parts or ‘valves’.
The scientific, or Latin, Genus name for this oyster is Gryphaea.
Thanks heaps for all the interest shown in my little collection.
Just a few more to come, then onto other things ..
Wildlife and nature
taggart, Fefe, r6jvr and 24 more