Crann Posted September 29, 2017 Share Posted September 29, 2017 Hi, I have these two same sized Hildoceras, I'm thinking one is a Juvenile as can see the mouth border and one is a large one that has broken, would this be correct and would you say both specimens are the same ? Thanks. Link to comment Share on other sites More sharing options...
Coco Posted September 29, 2017 Share Posted September 29, 2017 Hi, Perhaps Hildoceras bifrons on the left pic, and I don't know for the right pic... 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...
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