Missourian Posted January 2, 2012 Share Posted January 2, 2012 (I originally posted these in the 'Show Us Your Crinoids!' thread, but they quickly got lost in the shuffle....) Ethelocrinus magister Liberty Memorial Shale, Pennsylvanian Kansas City area A crown with a mutated calyx: The plates seem to have divided into several irregular pieces. Compare it to an Ethelocrinus with the normal dicyclic plate arrangement: http://www.ucmp.berkeley.edu/echinodermata/dicyclic.html Context is critical. Link to comment Share on other sites More sharing options...
edd Posted January 2, 2012 Share Posted January 2, 2012 Really nice " We're all puppets, I'm just a puppet who can see the strings. " Link to comment Share on other sites More sharing options...
sixgill pete Posted January 2, 2012 Share Posted January 2, 2012 Wow!! That is an amazing find. Very nice!!! Bulldozers and dirt Bulldozers and dirt behind the trailer, my desert Them red clay piles are heaven on earth I get my rocks off, bulldozers and dirt Patterson Hood; Drive-By Truckers May 2016 May 2012 Aug 2013, May 2016, Apr 2020 Oct 2022 Link to comment Share on other sites More sharing options...
Auspex Posted January 2, 2012 Share Posted January 2, 2012 Weird... If the ID is tight, then this is a startling pathology! "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...
Sinopaleus Posted January 2, 2012 Share Posted January 2, 2012 very cool great find! Link to comment Share on other sites More sharing options...
Indy Posted January 2, 2012 Share Posted January 2, 2012 (edited) Several years ago, I collected a similar specimen at the same locality For Comparison I have only found disarticulated Ethelocrinus plates at my Pennsylvanian locality here in St. Louis Middle Pennsylvanian Series - Desmoinesian Stage Marmaton Group - Altamont Formation - St. Louis, MO Website Link I have these plates listed as Ethelocrinus sp. However, I do consider the plates being from Ethelocrinus magister. Wondering if the above is of interest to the discussion Edited January 2, 2012 by Indy Flash from the Past (Show Us Your Fossils)MAPS Fossil Show Link to comment Share on other sites More sharing options...
Missourian Posted January 2, 2012 Author Share Posted January 2, 2012 Several years ago, I collected a similar specimen at the same locality ..... I have these plates listed as Ethelocrinus sp. However, I do consider the plates being from Ethelocrinus magister. Wondering if the above is of interest to the discussion Yes, thank you. They illustrate the shape of the plates from a normal Ethelocrinus. Context is critical. Link to comment Share on other sites More sharing options...
Wrangellian Posted January 3, 2012 Share Posted January 3, 2012 Nice specimens.. To echo Auspex, are you sure these are E. magister? Maybe you have a new/rare species? Link to comment Share on other sites More sharing options...
Missourian Posted January 3, 2012 Author Share Posted January 3, 2012 (edited) Weird... If the ID is tight, then this is a startling pathology! Nice specimens.. To echo Auspex, are you sure these are E. magister? Maybe you have a new/rare species? It has the same overall form and texture as an E. magister. And I've never seen a crinoid from around here that didn't have a dicyclic plate pattern. Edited January 3, 2012 by Missourian Context is critical. Link to comment Share on other sites More sharing options...
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