07359 - Top Beautiful 1.59 Inch Heterodiadema libycum (Sea Urchin) Cretaceous Plesiosaur bones Without a doubt

Without a doubt

Anetoceras arduennense

A time bubble that looks just like it was almost 50 Million years ago

and the specific gravity

In the following link we can also find a study where an Abelisaurid is described in this sector based on the proximal area of a femur:

07359 - Top Beautiful 1.59 Inch Heterodiadema libycum (Sea Urchin) Cretaceous Plesiosaur bones Without a doubtNice Preserved specimen. Heterodiadema libycum, Agassiz and Desor 1846 (sea urchin) Echinoidea Euechinoidea Pseudodiadematidae PaleoDB taxon number: 167187 Alternative combinations: Hemicidaris libyca, Heterodiadema lybicum Belongs to Heterodiadema according to R. Berndt 2003 Sister taxon: Heterodiadema buhaysensis Ecology: epifaunal grazer deposit feeder Environments: carbonate (2 collections), open shallow subtidal (2), shallow subtidal (2), (1),