Denis Arcand Posted June 21 Share Posted June 21 (edited) I found these rocks in an Ordovician formation, collected them because they seam out of place, and found them intriguing. Can anyone have any idea what this is, I'm not an expert but I think it could be a trace fossil made by a Bivalves, brachiopods or some sort of worm, or maybe just cement blocks. #1 #2 #3 Edited June 21 by Denis Arcand One fossil a day will keep you happy all day. Welcome to the FOSSIL ART Link to comment Share on other sites More sharing options...
Denis Arcand Posted June 21 Author Share Posted June 21 (edited) I don't know if this helps, this weird little shell fell off the first #1, when I was taking some pictures. . One side is round and the other side is flat at 90 degree angle ? It looks recent, it may just have fallen in one of the hold ? Edited June 21 by Denis Arcand One fossil a day will keep you happy all day. Welcome to the FOSSIL ART Link to comment Share on other sites More sharing options...
DPS Ammonite Posted June 22 Share Posted June 22 (edited) That is a modern invasive Zebra Mussel. https://en.m.wikipedia.org/wiki/Zebra_mussel Edited June 22 by DPS Ammonite 2 1 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...
Denis Arcand Posted June 22 Author Share Posted June 22 (edited) 12 minutes ago, DPS Ammonite said: That is a modern invasive Zebra Mussel. https://en.m.wikipedia.org/wiki/Zebra_mussel Thanks @DPS Ammonite, now that you mention it, i am not surprised, the rocks were found in a water way. Anything you can tell me about the rock full of holes ? Edited June 22 by Denis Arcand One fossil a day will keep you happy all day. Welcome to the FOSSIL ART Link to comment Share on other sites More sharing options...
Denis Arcand Posted July 1 Author Share Posted July 1 (edited) Are these holes in the rocks formed naturally or are they created by biological creatures like the zebra mussel? Edited July 1 by Denis Arcand One fossil a day will keep you happy all day. Welcome to the FOSSIL ART Link to comment Share on other sites More sharing options...
Denis Arcand Posted July 1 Author Share Posted July 1 (edited) I think they could be Gastrochaenolites (Leynerie, 1842), I will try to see if the opening region is narrower than the chamber, which could help establish a positive identification. Edited July 1 by Denis Arcand 1 One fossil a day will keep you happy all day. Welcome to the FOSSIL ART Link to comment Share on other sites More sharing options...
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