Kosmoceras Posted June 30, 2012 Share Posted June 30, 2012 A quick diagram to show you a bit about echinoid spines. 1 Link to comment Share on other sites More sharing options...
Acryzona Posted June 30, 2012 Share Posted June 30, 2012 Thanks for posting this information Kosmoceras. I've found a few spines in New Jersey but never thought about the terminology. Collecting Microfossils - a hobby concerning much about many of the little paraphrased from Dr. Robert Kesling's book Link to comment Share on other sites More sharing options...
erose Posted June 30, 2012 Share Posted June 30, 2012 I would like to know more about spines and how many have been matched to the genus or species. Link to comment Share on other sites More sharing options...
hssain Posted June 30, 2012 Share Posted June 30, 2012 (edited) here are some of them from morocco jurassic beds. firmacidaris, reboulicidaris, dickecidaris, sphaerotiaris, cidaropsis anoulensis. Edited June 30, 2012 by hssain Link to comment Share on other sites More sharing options...
Kosmoceras Posted June 30, 2012 Author Share Posted June 30, 2012 I would like to know more about spines and how many have been matched to the genus or species. Interesting, yes each genus has different amounts. Would love to look into it more once I find some more regular echinoids. Majority of mine are irregulars. Link to comment Share on other sites More sharing options...
Kosmoceras Posted June 30, 2012 Author Share Posted June 30, 2012 Thanks for posting those fantastic examples. Anyone else who has any regular echinoids with spines, would love to see some more. Link to comment Share on other sites More sharing options...
erose Posted June 30, 2012 Share Posted June 30, 2012 I certainly see differences in the local Cretaceous spines. But I need to either do some drawings or magnified photography. Recently I found my first Goniopygus after noticing that there were spines present that did not match the typical "Salenia" spines. I'm not 100% sure they are from the Goniopygus but it would have been the most likely suspect. Does anyone know of papers or reports describing spines? Link to comment Share on other sites More sharing options...
hssain Posted June 30, 2012 Share Posted June 30, 2012 (edited) this is caenocidaris cucumifera bajocian morocco. Edited June 30, 2012 by hssain Link to comment Share on other sites More sharing options...
hssain Posted June 30, 2012 Share Posted June 30, 2012 balanocidaris upper jurassic north africa and europe. Link to comment Share on other sites More sharing options...
erose Posted June 30, 2012 Share Posted June 30, 2012 Hssain, Those are pretty cool. We have one cidarid here in Texas with crazy fat spines. But they are not common and I have never heard of anyone finding them associated with a complete echinoid test. Link to comment Share on other sites More sharing options...
Kosmoceras Posted June 30, 2012 Author Share Posted June 30, 2012 Hssain, Those are pretty cool. We have one cidarid here in Texas with crazy fat spines. But they are not common and I have never heard of anyone finding them associated with a complete echinoid test. You might be able to make a composite. Stick the spines onto a body, they can look good. Link to comment Share on other sites More sharing options...
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