LanceH Posted June 1, 2013 Share Posted June 1, 2013 I'm posting for a friend who purchased this "cidarid" from a collector that found it recently at a locality in the Weno formation (c. 98-99 mya) in Tarrant county, Texas. I'm thinking it's "Phyllacanthus" (and not "Stereocidaris") just going off pictures in books but I'd like some opinions from actual knowlegable people on which this is. "Phyllacanthus" and "Stereocidaris" are the two genuses most associated with the big cidarids around here but if there's other possibilities I'd like to know. Can someone list the easy-to-see differences between those two genuses? Link to comment Share on other sites More sharing options...
JohnJ Posted June 1, 2013 Share Posted June 1, 2013 That is a stunning find. I can't imagine selling it if I found it. I'm inclined to agree with you about it being a Phyllacanthus species. However, these finds are so rare in Texas, there are not a lot of comparable specimens. If you can still get in touch with Mike Murphy, I think he would be your best bet for a more definitive ID. Here is a plate from the Treatise on Invertebrate Paleontology, Part U, vol. 1. Based on other notations, I've added the ID in blue. Notice the interambulacral plates on the aboral side without tubercles. 1 The human mind has the ability to believe anything is true. - JJ Link to comment Share on other sites More sharing options...
Coco Posted June 1, 2013 Share Posted June 1, 2013 I can't help you, but here are 2 pics of my recent Phyllacanthus imperialis from Philippines. Aboral side : Oral side : Hope this help. Coco ---------------------- OUTIL POUR MESURER VOS FOSSILES : ici Ma bibliothèque PDF 1 (Poissons et sélaciens récents & fossiles) : ici Ma bibliothèque PDF 2 (Animaux vivants - sans poissons ni sélaciens) : ici Mâchoires sélaciennes récentes : ici Hétérodontiques et sélaciens : ici Oeufs sélaciens récents : ici Otolithes de poissons récents ! ici Un Greg... Link to comment Share on other sites More sharing options...
Herb Posted June 1, 2013 Share Posted June 1, 2013 Beautiful!! both the fossil and the recent ones. "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...
Crinoid Queen Posted June 1, 2013 Share Posted June 1, 2013 Very Beautiful! I would never want to sell that! Link to comment Share on other sites More sharing options...
Uncle Siphuncle Posted June 2, 2013 Share Posted June 2, 2013 i would sell my furniture before selling that heirloom find. 1 Grüße, Daniel A. Wöhr aus Südtexas "To the motivated go the spoils." Link to comment Share on other sites More sharing options...
claire01 Posted June 2, 2013 Share Posted June 2, 2013 I find myself returning to this post again and again just to have another look at these incredible fossils. Just breathtakingly beautiful to me. Link to comment Share on other sites More sharing options...
Batty Posted June 2, 2013 Share Posted June 2, 2013 So exquisite Link to comment Share on other sites More sharing options...
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