It was sold for me as the fish - found in Świetokrzyskie Mountains in the central Poland.
It is a fish!! a teleostan one, not a mollusc, nor a crustacean!! Bones of the head do not let any doubt, I think
It is a perciform fish (Teleostei). For detaied identification, need to examine the specimen.
As wrote Mee-mann, detailed identification is not possible on the basis of a this sole image. I might be, indeed, a "perciform" fish, as our understanding and definition of the group as changed (https://sites.google.com/site/guilleorti/home/classification-v-2)
few legends have been added in the attached file, to provide clues to provide arguments it is not a mollusc, nor a crustacean!
Yes it is a nice fish, perciform. I am working with such fishes from Poland. It is Percoidei indet. Some morphological characters are not well preserved, so species determination is impossible. It resembles "Serranus budensis", the species which needs revision. By Prokofiev it is classified as Oligoserranus budensis, by Bannikov Oliganodon budensis.
It is probably a "close" relative of Lutjanidae or Symphysanodontidae.
Such fishes are in the Outer Carpathians in southern Poland, not in Holy Cross Mountains. Their age is usually Oligocene.
THANKS! THANKS! THANKS. If somebody like to have a full resolution photo for his purposes - i will send it .
Andrzej
Do you have meristic counts of the dorsal spines/rays, branchiostegal rays, vertebrae (e.g. 10+14)? Are the posterior margins of the preopercle and/or posttemporal serrated? Cycloid or ctenoid scales? Lutjanids have a maxillary sheath comprised entirely of the first infraorbital, in sparoids the first two infraorbitals. You could also try sending your photo to Alexandre Bannikov whom has extensive experience with fossil percoids from Bolca and beyond.
Good luck.
thanks a lot Louise.I enclose still better version of the stone . In the upper part you can recognize even the scales of the fish:
Sure looks like a serranid perciform to me. Very reminiscent of some specimens from Frauenweiler (Germany) in the Stuttgart collection.
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