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Devil's Toenail

By BarbaraR
Morning all, Smile
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 ..
Barbara Smile

Tags: Macro Fossil Wildlife and nature Gryphaea Devils Toenail

Voters: taggart, Fefe, r6jvr and 24 more

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Fefe Plus
6 23 31 United Kingdom
7 Feb 2012 11:04AM
Knew this was yours immediatley.... Very nice againSmile

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r6jvr 6 United Kingdom
7 Feb 2012 11:11AM
This has taken me back to my childhood, searching our local beach for these! Totally forgot the name until you mentioned it!
gingerdelight 11 298 11 United Kingdom
7 Feb 2012 11:14AM
What a glorious name! Lovely capture once again!
CarolG 11 199 20 Greece
7 Feb 2012 11:35AM
What a great name for this unusual fossil, Barbara, again, well captured and presented. Carol
Chinga Plus
7 3 1 United Kingdom
7 Feb 2012 12:07PM
It's got a very interesting shape. Nice one! IB
Jasper87 Plus
8 2.0k 150 England
7 Feb 2012 12:14PM
Yay, got one of them. Found it whilst walking across a field near Stratford-upon-Avon. Nicely captured Barbara.

EAS 9 1 13 Scotland
7 Feb 2012 2:32PM
Beautifully captured in this image. Enjoyed your info too.

gary_d 10 576 13 Wales
7 Feb 2012 4:15PM
Thanks heaps for all the interest shown in my little collection.

Thank you for showing them, as I said previously I am finding the series very interesting.

dasher 8 1 United Kingdom
7 Feb 2012 4:19PM
I must get round to arranging my collection of varying sized devils toenails tomake a foot.
Nice detail and write up.
gajewski Plus
13 10 9 United States
7 Feb 2012 5:04PM
I love your collection. Seeing these takes me back to growing up along the shores of Lake Erie (42.735, -78.929 in Google maps) -- searching the shale along the cliffs. That shale and the dolomite caprock are rich with Devonian age fossils.
This devil's toenail is nicely presented. Thanks for including all the informative commentary as well.
jasonrwl Plus
8 1.1k 10 United Kingdom
7 Feb 2012 6:02PM
Enjoying this series Barbara
ugly Plus
10 9 57 United Kingdom
8 Feb 2012 7:00AM
A top image here...
Very very sharp..
Nice DOF....
A good macro image...
Well done...

Glostopcat 12 255 2 England
20 Feb 2012 9:42PM
These can be found in the quarries at the side of leckhampton hill near Cheltenham, I remember looking for and finding these when i was a kid
BarbaraR 12 17 1 England
21 Feb 2012 8:22AM
Thank you very much everyone.
This fossil is well known to lots of us, especially
as kids it seems Smile


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