Gen. et sp. indet. Posted July 21, 2017 Share Posted July 21, 2017 A closed tube-like fossil with delicate ornamentation on sides and a weird barbecue-like surface on the apex, with bryozoan epibionts. From a Polish Callovian locality rich in bivalves, brachiopods, and other fossils. Having looked from all sides, I am certain it is not a chimaera but definitely one tube-like shell, with shell continuous (where preserved) from sides to the apex, similar in shape to a belemnite phragmocone. Link to comment Share on other sites More sharing options...
FossilDudeCO Posted July 21, 2017 Share Posted July 21, 2017 you were not kidding, that is a weird one! I will be watching to see what people come up with! Link to comment Share on other sites More sharing options...
TqB Posted July 21, 2017 Share Posted July 21, 2017 Fascinating, I can't think of anything that shape. Possibly a xenomorphic shell, where photo 2 shows where it has grown against a ribbed bivalve or ammonite? 1 Tarquin Link to comment Share on other sites More sharing options...
Al Dente Posted July 21, 2017 Share Posted July 21, 2017 15 minutes ago, TqB said: 2 shows where it has grown against a ribbed bivalve I agree with that statement. Link to comment Share on other sites More sharing options...
Gen. et sp. indet. Posted July 21, 2017 Author Share Posted July 21, 2017 Thanks. I was thinking about an oyster living on some other bivalve, but... why is it shaped like a tube? Link to comment Share on other sites More sharing options...
DPS Ammonite Posted July 21, 2017 Share Posted July 21, 2017 EDIT: Here is what the bryozoan might be. I see now that you want to know what the large shell is. A fragment of an oyster where it was attached to a inoceramid like shell with plications is a good guess. See this article for a picture of a similiar Polish Callovian bryozoans. "Callovian (Middle Jurassic) cyclostome bryozoans from the Zalas Quarry, southern Poland" POSTED ON 2013/11/13 and found at: https://paleoptg.wordpress.com/tag/jurassic/ My goal is to leave no stone or fossil unturned. See my Arizona Paleontology Guide link The best single resource for Arizona paleontology anywhere. Link to comment Share on other sites More sharing options...
Miocene_Mason Posted July 21, 2017 Share Posted July 21, 2017 Kuphus or serpulid tube with bivalve on it? “...whilst this planet has gone cycling on according to the fixed law of gravity, from so simple a beginning endless forms most beautiful and most wonderful have been and are being evolved.” ~ Charles Darwin Happy hunting, Mason Link to comment Share on other sites More sharing options...
Herb Posted July 21, 2017 Share Posted July 21, 2017 cool bryozoans "Absence of evidence is not evidence of absence"_ Carl Sagen No trees were killed in this posting......however, many innocent electrons were diverted from where they originally intended to go. " I think, therefore I collect fossils." _ Me "When you have eliminated the impossible, whatever remains, however improbable, must be the truth."__S. Holmes "can't we all just get along?" Jack Nicholson from Mars Attacks Link to comment Share on other sites More sharing options...
BobWill Posted July 22, 2017 Share Posted July 22, 2017 Beautiful example of bioimmuration. If it doesn't match any oysters you find there it might be a rudist clam since they arose in the late Jurassic . Link to comment Share on other sites More sharing options...
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