21089 - Museum Grade Soft Bodied Aglaspid (Tremaglaspis unite) Lower Ordovician Fezouata Fm Palaeonotopterus This very rare mosasaur is

This very rare mosasaur is not described in a moroccan phosphates all the skull mesured the same size: 32 inches

the United Kingdom (1)

mostly represented by the fossil Bothremydidae (more than ten Palaeogene different genera)

Another alternative combination in the nomenclature of this taxon is Siroccopteryx moroccensis

and in the pigidium some rings have been recorded

21089 - Museum Grade Soft Bodied Aglaspid (Tremaglaspis unite) Lower Ordovician Fezouata Fm Palaeonotopterus This very rare mosasaur isAglaspidida is an extinct order of aquatic arthropods that were once regarded as primitive chelicerates. However, anatomical comparisons demonstrate that the aglaspidids cannot be accommodated within the chelicerates, and that they lie instead within the Artiopoda, thus placing them closer to the trilobites. Aglaspidida contains the subgroups Aglaspididae and Tremaglaspididae, which are distinguished by the presence of acute spinose genal angles and a