Gen. et sp. indet. Posted September 7, 2018 Share Posted September 7, 2018 Two colonies found today in central Poland. Erratic boulders, so no data available other than this: Ordovician or Silurian, Baltica. Is there an easy way to distinguish between various 'monticuliporid' taxa actually placed in different trepostome families? Smaller specimen: Link to comment Share on other sites More sharing options...
thelivingdead531 Posted September 7, 2018 Share Posted September 7, 2018 @Tidgy's Dad might know. What do you think, Adam? I feel like this may be your area of knowledge. Link to comment Share on other sites More sharing options...
Tidgy's Dad Posted September 7, 2018 Share Posted September 7, 2018 It's an absolute nightmare of taxonomy and morphology. You really have to be an expert which i'm rather afraid I'm not. And without knowing the exact horizon it would become near impossible, I would say. Sorry. Life's Good! Tortoise Friend. Link to comment Share on other sites More sharing options...
piranha Posted September 7, 2018 Share Posted September 7, 2018 These look like tabulate corals. Link to comment Share on other sites More sharing options...
thelivingdead531 Posted September 7, 2018 Share Posted September 7, 2018 1 hour ago, Tidgy's Dad said: It's an absolute nightmare of taxonomy and morphology. You really have to be an expert which i'm rather afraid I'm not. And without knowing the exact horizon it would become near impossible, I would say. Sorry. Sorry then! You were the first person to come to mind though. Link to comment Share on other sites More sharing options...
Wrangellian Posted September 7, 2018 Share Posted September 7, 2018 @Spongy Joe has some knowledge of Bryo's too, doesn't he? except I haven't seen him around lately, maybe others have? Link to comment Share on other sites More sharing options...
ynot Posted September 8, 2018 Share Posted September 8, 2018 1 hour ago, Wrangellian said: @Spongy Joe has some knowledge of Bryo's too, doesn't he? except I haven't seen him around lately, maybe others have? Has not been onsite since mid july. Darwin said: " Man sprang from monkeys." Will Rogers said: " Some of them didn't spring far enough." My Fossil collection - My Mineral collection My favorite thread on TFF. Link to comment Share on other sites More sharing options...
Gen. et sp. indet. Posted September 8, 2018 Author Share Posted September 8, 2018 Thank you all for the answers. Here are some magnifications of the bigger specimen... Link to comment Share on other sites More sharing options...
Gen. et sp. indet. Posted September 8, 2018 Author Share Posted September 8, 2018 13 hours ago, piranha said: These look like tabulate corals. Are you sure? Link to comment Share on other sites More sharing options...
Rockwood Posted September 8, 2018 Share Posted September 8, 2018 14 hours ago, piranha said: These look like tabulate corals. The third photo definitely looks like a tabulate. I'm not sure the larger piece is preserved well enough to be identified. Link to comment Share on other sites More sharing options...
doushantuo Posted September 8, 2018 Share Posted September 8, 2018 do you perchance mean something like this: possibly?("Ordovician erratic Bryozoa of Poland/1962") about 5,5 Mb,and might contain obsolete taxonomy there are biometrical(stereometrical) criteria available for species discrimination,btw (below,image from Jimenez-Sanchez/Geodiversitas,2010),should be in several libraries here Link to comment Share on other sites More sharing options...
Gen. et sp. indet. Posted September 9, 2018 Author Share Posted September 9, 2018 20 hours ago, doushantuo said: Thanks! I've got all these papers now and will read them. Unfortunately, it seems clear now, without cut samples and much knowledge, I won't be able to ID the colonies. Link to comment Share on other sites More sharing options...
Johannes Posted September 9, 2018 Share Posted September 9, 2018 For the (on genera-level) comparable ordovician baltic province bryozoa I use "Bassler 1911 The early Paleozoic Bryozoa of the Baltic Provinces": old, but still very usable (and with very good and instructive pictures). Ways better than Kiepura 1962. @ Rockwood: treptostomate bryozoa often look like "mini-tabulata" on the first view , but when you have a closer look (and a very good preparated or plane-polished surface) there are significant differences in microstructure. Link to comment Share on other sites More sharing options...
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