ismellawumpus Posted January 2, 2009 Share Posted January 2, 2009 I was hiking in the Swatara Gap area and found this: It is about 1.5 cm across and looks distinctly different from these: Which I believe to be crinoid stems. And any idea what these might be? More pictures can be found here: More pictures ...link... The astute reader might see a wumpus in some of the above pictures.... Link to comment Share on other sites More sharing options...
ebrocklds Posted January 2, 2009 Share Posted January 2, 2009 i think that is is also an impression of a crinoid stem segment. the last things are bryozoans.what species i have no idea. Brock Link to comment Share on other sites More sharing options...
Northern Sharks Posted January 2, 2009 Share Posted January 2, 2009 Solius or Crinus would be the best bet for a definitive answer, but my guess would be the base of a horn coral, or possibly a button coral (if they existed in the Ordovician) There's no limit to what you can accomplish when you're supposed to be doing something else Link to comment Share on other sites More sharing options...
Archimedes Posted January 2, 2009 Share Posted January 2, 2009 The first two photos look like crinoid stem impressions, the third looks like a Fenestella type impression, a Bryozoan Link to comment Share on other sites More sharing options...
Guest solius symbiosus Posted January 2, 2009 Share Posted January 2, 2009 Archimedes pretty much got it. The bryozoan is some kind of fenestrate, but Fenestella didn't come along until the Sil. Link to comment Share on other sites More sharing options...
crinus Posted January 3, 2009 Share Posted January 3, 2009 I agree with everyone that the first two are crinoid stem segments. Crinoids have been found at Swatara Gap so that is no surprise. The third is definitely a bryozoan. It looks like a bryozoan I have from the Ordovician of Ontario. That specimen was ID by a Ordovician Bryozoan expert as Stictopora. Yours is probably something similar. crinus Link to comment Share on other sites More sharing options...
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