Notidanodon Posted April 2, 2022 Share Posted April 2, 2022 Hi guys I was wondering what your thoughts on this flint echinoid were, is it too worn to be identified? 3 Link to comment Share on other sites More sharing options...
Coco Posted April 3, 2022 Share Posted April 3, 2022 Hi, It looks like Collyrites with its bivium and trivium, but we’d need better pictures from above. Coco 1 1 ---------------------- OUTIL POUR MESURER VOS FOSSILES : ici Pareidolia : here 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...
caterpillar Posted April 3, 2022 Share Posted April 3, 2022 I don't think it's Collyrites. Collyrites has posterior ambulacras near the periproct. Here they are near the apex I think it's an Holasteridae. To be sure, we need the epoch 1 http://www.paleotheque.fr Link to comment Share on other sites More sharing options...
Notidanodon Posted April 3, 2022 Author Share Posted April 3, 2022 24 minutes ago, caterpillar said: I don't think it's Collyrites. Collyrites has posterior ambulacras near the periproct. Here they are near the apex I think it's an Holasteridae. To be sure, we need the epoch It’s likely cenomian or turonian, does that help? Link to comment Share on other sites More sharing options...
caterpillar Posted April 3, 2022 Share Posted April 3, 2022 Yes, a lot. Collyrites is jurassic and not cretaceous. So it could be an Holasteridae but it's an internal mold and difficult to id more. 1 http://www.paleotheque.fr Link to comment Share on other sites More sharing options...
Notidanodon Posted April 4, 2022 Author Share Posted April 4, 2022 18 hours ago, caterpillar said: Yes, a lot. Collyrites is jurassic and not cretaceous. So it could be an Holasteridae but it's an internal mold and difficult to id more. Thanks! Link to comment Share on other sites More sharing options...
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