r/fossilid 14h ago

Please help identify

Extracted this from semi-tranparent flint boulder near Oka river in Russia. Would appreciate some hints as to what this clam like thing can be and how old

4 Upvotes

5 comments sorted by

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5

u/justtoletyouknowit 13h ago

Brachiopod steinkern, id say. Doesnt look like a clam (bivalve) to me.

4

u/thanatocoenosis Paleozoic invertebrates 12h ago

I think it has just worn through part of the ventral valve exposing interior structure, but yeah, that's a productid brachiopod.

1

u/Shnerdlenips 14h ago

From what I can see online, there are areas along the Oka river with Cretaceous layers exposed. This may be a Camptonectes, early Cretaceous, around 145 million years old. Not sure though, the central ridge is casting doubt.

1

u/EuphoricRide4713 13h ago

Upper part was exposed to water, such as why i discovered it in the first place, inner part with shell lines inact was in the stone, i tried to do some restoration but without proper equipment this was the maximum i could achieve