hndmarshall Posted February 5, 2019 Share Posted February 5, 2019 purchased online information unknown sorry they seemed to think it was a claw or perhaps a tail of some thing I am leaning more toward crinoid stem fossil. not sure though have now found any online that have what looks like skin on them...interested in seeing what you people think. 1 Link to comment Share on other sites More sharing options...
hndmarshall Posted February 5, 2019 Author Share Posted February 5, 2019 close ups...... Link to comment Share on other sites More sharing options...
caldigger Posted February 5, 2019 Share Posted February 5, 2019 Looks more like a straight cephalopod. Is this from your Brazos River rock pile? 1 Link to comment Share on other sites More sharing options...
hndmarshall Posted February 5, 2019 Author Share Posted February 5, 2019 8 minutes ago, caldigger said: Looks more like a straight cephalopod. Is this from your Brazos River rock pile? no some one was selling it online was no info on it really...the seller thought it was a tail portion or claw....but it looked off to me and it was odd so I bought it. but it also looks a bit odd for a crinoid. Link to comment Share on other sites More sharing options...
KimTexan Posted February 5, 2019 Share Posted February 5, 2019 I would say cephalopod too. The pattern on the surface could be the natural ornamentation of the shell. The larger dots. The other pattern looks a bit like bryozoa overlaying the cephalopod structure Do you have age on it? This looks like Ordovician give or take a period. Link to comment Share on other sites More sharing options...
caldigger Posted February 5, 2019 Share Posted February 5, 2019 Here's a couple in my case, but I have never seen a specimen with the outer covering like that. 1 Link to comment Share on other sites More sharing options...
hndmarshall Posted February 5, 2019 Author Share Posted February 5, 2019 found this it was on here in the past and does look similar..... 1 Link to comment Share on other sites More sharing options...
ynot Posted February 5, 2019 Share Posted February 5, 2019 Orthocone naughtlus with encrusting bryozoan. 4 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...
Manticocerasman Posted February 5, 2019 Share Posted February 5, 2019 I'm also inclined to say cephalopod Orthocone with bryozoan colony encrusted. not 100% sure, but this could be the syphuncle showing: do you have an idea of the age of those deposits? 3 growing old is mandatory but growing up is optional. Link to comment Share on other sites More sharing options...
Rockwood Posted February 5, 2019 Share Posted February 5, 2019 4 hours ago, KimTexan said: I would say cephalopod too. The pattern on the surface could be the natural ornamentation of the shell. The larger dots. The other pattern looks a bit like bryozoa overlaying the cephalopod structure I think the dots are maculae in the bryozoan colony. They relate to current flow and feeding efficiency. 3 Link to comment Share on other sites More sharing options...
Ludwigia Posted February 5, 2019 Share Posted February 5, 2019 Another vote here for cephalopod with bryozoan incrustaton. Greetings from the Lake of Constance. Roger http://www.steinkern.de/ Link to comment Share on other sites More sharing options...
caldigger Posted February 5, 2019 Share Posted February 5, 2019 hndmarshall, seems you just bought yourself a good conversation starter. Link to comment Share on other sites More sharing options...
Archie Posted February 5, 2019 Share Posted February 5, 2019 +1 for bryozoan encrusted cephalopod, that's really cool seen plenty of crinoid stems and once a brachiopod encrusted with bryozoans but never a cephalapod. Link to comment Share on other sites More sharing options...
fifbrindacier Posted February 5, 2019 Share Posted February 5, 2019 Nice, find, in all the meanings of that word. "On ne voit bien que par le coeur, l'essentiel est invisible pour les yeux." (Antoine de Saint-Exupéry) "We only well see with the heart, the essential is invisible for the eyes." In memory of Doren Link to comment Share on other sites More sharing options...
Hubertus68 Posted February 9, 2019 Share Posted February 9, 2019 To determine this structure close-ups are helpful. I can't identify the structure as being an encrusting bryozoan yet. Best wishes, Oliver Link to comment Share on other sites More sharing options...
Rockwood Posted February 9, 2019 Share Posted February 9, 2019 9 minutes ago, Hubertus68 said: To determine this structure close-ups are helpful. I can't identify the structure as being an encrusting bryozoan yet. Best wishes, Oliver This identification is largely assisted from consideration of the context. There are a limited number of organisms with this general pattern in their geometry which would encrust in this manner. Heliolitid coral has a similar habit and appearance but the dark areas would be sharply bordered circles. 1 Link to comment Share on other sites More sharing options...
Hubertus68 Posted February 16, 2019 Share Posted February 16, 2019 Hydrozoans (e.g. hydractinia-like) or encrusting sclerosponges may be another option. Best wishes, Oliver 1 Link to comment Share on other sites More sharing options...
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