88138 - Superb 0.99 Inch Gerastos tuberculatus Devonian Trilobite Abelisaurus The shelly fossil record shows

The shelly fossil record shows a well-recognized pattern of macroevolutionary stasis between the Cambrian Explosion and the Great Ordovician Biodiversification Event

This taxon was described by Hauq (1905) and belongs to the Pristidae family

with beautiful orangish hues

The exact taxonomic classification is complex given that there are very few published studies that refer to the rests of the Dromaeosauridae family in the North African Upper Cretaceous

The different Geological Formations that make up the orography of the Cretaceous in the South East of Morocco have been mostly treated in an undifferentiated and not too accurate way by collectors

88138 - Superb 0.99 Inch Gerastos tuberculatus Devonian Trilobite Abelisaurus The shelly fossil record showsBeautiful proetid trilobite from the lower devonian of the outcrops of Foum Zguid (Morocco).