Gen. et sp. indet. Posted January 6, 2015 Share Posted January 6, 2015 An Ordovician-Silurian specimen from Pleistocene sediments of Poland. What kind of Bryozoa is it? Alternatives include a tabulate coral or a 'coralline sponge'. Link to comment Share on other sites More sharing options...
dragonsfly Posted January 6, 2015 Share Posted January 6, 2015 Looks more like cross-section of coral to me , John Link to comment Share on other sites More sharing options...
Gen. et sp. indet. Posted January 6, 2015 Author Share Posted January 6, 2015 The cross section of the 'corallites' seems to be circular to oval, unlike these Favositida (Tabulata) I am familiar with. Also, I see no apparent tabulae. A Diplotrypa (Bryozoa) for comparision: http://geokogud.info/git/di.php?f=specimen_image/105/105-26.jpg Link to comment Share on other sites More sharing options...
Gen. et sp. indet. Posted January 7, 2015 Author Share Posted January 7, 2015 Anyone? Link to comment Share on other sites More sharing options...
erose Posted January 8, 2015 Share Posted January 8, 2015 The tubes seem too big for bryozoa. But other than the idea that it is probably a coral any further ID would be hard. it looks to be waterworn and it's provenance would be uncertain. Link to comment Share on other sites More sharing options...
Herb Posted January 8, 2015 Share Posted January 8, 2015 Could be Desmeplagioecia pastiliformis ? "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...
Gen. et sp. indet. Posted January 9, 2015 Author Share Posted January 9, 2015 Thank you for your answers. The Recent Pacific Desmeplagioecia pastiliformis is not a possibility, though. The specimen is Palaeozoic in age and of Baltica provenance. Link to comment Share on other sites More sharing options...
Herb Posted January 9, 2015 Share Posted January 9, 2015 Sorry I misread the age. My guess for O-S would be Tetradium sp. "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...
Gen. et sp. indet. Posted January 10, 2015 Author Share Posted January 10, 2015 Thank you. I am hunting for Prismostylus (your Tetradium), but this one here is definitely not this red alga, as the cross section is not quadratic. Link to comment Share on other sites More sharing options...
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