LakeErieLady Posted December 22, 2015 Share Posted December 22, 2015 I found this today while searching through a gravel bed. I think it is a segment from a crinod stem, but it is very tiny. Only 3mm. Am I right? Link to comment Share on other sites More sharing options...
Auspex Posted December 22, 2015 Share Posted December 22, 2015 I dunno... It does not appear to have a hole in the center; even a very worn crinoid columnal should. "There has been an alarming increase in the number of things I know nothing about." - Ashleigh Ellwood Brilliant “Try to learn something about everything and everything about something.” - Thomas Henry Huxley >Paleontology is an evolving science. >May your wonders never cease! Link to comment Share on other sites More sharing options...
ynot Posted December 22, 2015 Share Posted December 22, 2015 It does not look like a crinoid segment to Me either. It is too round on the edge and does not have the internal structure of a crinoid stem. Possibly a echinoid? Tony 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...
LakeErieLady Posted December 22, 2015 Author Share Posted December 22, 2015 (edited) It looks like the hole is filled with muck. I tried prying it free but it is really hard. Since I don't know what I'm doing I didn't poke at it too much. Edited December 22, 2015 by LakeErieLady Link to comment Share on other sites More sharing options...
Fossildude19 Posted December 22, 2015 Share Posted December 22, 2015 The strata there is Devonian, so it is unlikely to be an echinoid. I would say it has a better chance of being a cystoid columnal. We may never know if the center is unable to be cleaned out. Regards, Tim - VETERAN SHALE SPLITTER VFOTM --- APRIL - 2015 __________________________________________________ "In every walk with nature one receives far more than he seeks." John Muir ~ ~ ~ ~ ><))))( *> About Me Link to comment Share on other sites More sharing options...
ynot Posted December 22, 2015 Share Posted December 22, 2015 (edited) This is the type of internal structure that should be there if it were a crinoid stem. Tony Edited December 22, 2015 by ynot 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...
howard_l Posted December 22, 2015 Share Posted December 22, 2015 They don't all ways have stars in the middle Howard_L http://triloman.wix.com/kentucky-fossils Link to comment Share on other sites More sharing options...
Auspex Posted December 22, 2015 Share Posted December 22, 2015 Even if there is a hole unseen because of sediment fill, columnals are designed to stack like poker chips; the face of this object is smooth, with a rounded surface. I think it is something else (but I don't know what). "There has been an alarming increase in the number of things I know nothing about." - Ashleigh Ellwood Brilliant “Try to learn something about everything and everything about something.” - Thomas Henry Huxley >Paleontology is an evolving science. >May your wonders never cease! Link to comment Share on other sites More sharing options...
Bullsnake Posted December 22, 2015 Share Posted December 22, 2015 Could it be a sclerotic ring from a placoderm? Steve Link to comment Share on other sites More sharing options...
Herb Posted December 22, 2015 Share Posted December 22, 2015 There are crinoid columnals shaped like that, but not as common as the others. "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...
Auspex Posted December 22, 2015 Share Posted December 22, 2015 There are crinoid columnals shaped like that, but not as common as the others. Lookin' good; do you know a name for the species? "There has been an alarming increase in the number of things I know nothing about." - Ashleigh Ellwood Brilliant “Try to learn something about everything and everything about something.” - Thomas Henry Huxley >Paleontology is an evolving science. >May your wonders never cease! Link to comment Share on other sites More sharing options...
Herb Posted December 23, 2015 Share Posted December 23, 2015 Lookin' good; do you know a name for the species? Seriously? I will try to get the name. "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...
ynot Posted December 23, 2015 Share Posted December 23, 2015 There are crinoid columnals shaped like that, but not as common as the others. Can You get a close up on the end of a colum? It does not appear to have the same structure where the segments would join together as that of the piece in the original post. The pieces that You showed are considerably smaller also. Do they get as big as the piece in question? Just a few thoughts. Tony 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...
Herb Posted December 23, 2015 Share Posted December 23, 2015 (edited) Cincinnaticrinus pentagonus has those kind of stems, and some hold fast sections have rings like that. from the Dry Dredgers site. Edited December 23, 2015 by Herb "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...
Auspex Posted December 23, 2015 Share Posted December 23, 2015 I'll be darned. I guess an echinoderm columnal cannot be excluded from consideration based just on it having a toroidal cross section. I'd still like to see a hole in the center, though. "There has been an alarming increase in the number of things I know nothing about." - Ashleigh Ellwood Brilliant “Try to learn something about everything and everything about something.” - Thomas Henry Huxley >Paleontology is an evolving science. >May your wonders never cease! Link to comment Share on other sites More sharing options...
Herb Posted December 23, 2015 Share Posted December 23, 2015 (edited) just a possibility. Without the age it's all guesswork. Edited December 23, 2015 by Herb "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...
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