Mystery Fossil from Russia
Pennsylvanian - Kasimovian Stage
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It looks a little like a branching Prismopora bryozoan.
I don't know the range of that genus.
It is perhaps an octocoral or a hydrozoan, but I really do not know.
The center appears to have some chambers in it, but the outer layers
are different. There are quite a few uncommon fossils that are poorly
known and their relationships remain obscure. Commonly, these are
species of groups that do not usually calcify, so are seldom preserved.
When a species of such a group does calcify, it stands out as an unknown.
If it were possible examine the fossil directly and under magnification,
it would be much easier to make some decisions..
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