07359 - Top Beautiful 1.59 Inch Heterodiadema libycum (Sea Urchin) Cretaceous Plesiosaur bones Mass: 100 kg

Mass: 100 kg

This tooth was broken in small sector of the root during the initial collecting efforts but all parts were put back together and there is no restoration and no fabrication

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:

Without a doubt

and the specific gravity

07359 - Top Beautiful 1.59 Inch Heterodiadema libycum (Sea Urchin) Cretaceous Plesiosaur bones Mass: 100 kgNice 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),