21122 - Colorful Asaphellus fezouatensis Lower Ordovician Trilobite Fezouata Fm KemKem_Sawfish Sister taxa: Erbenoceras

Sister taxa: Erbenoceras

(eds): Proceedings of the First Mosasaur Meeting

Gerastos is a genus of trilobite in the order Proetida that lived between the Pragian and Eifelian of the Lower-Middle Devonian

although dealers are confident that most of the known masses are sufficiently distinctive from other NWA meteorites in terms of surface and internal appearance that the error rate should be fairly low

Monbaron 1979

21122 - Colorful Asaphellus fezouatensis Lower Ordovician Trilobite Fezouata Fm KemKem_Sawfish Sister taxa: ErbenocerasAsaphellus sp, Callaway 1877 (trilobite) Trilobita Asaphida Asaphidae Colorful specimen. It comes from the Lower Ordovician of the Famous Fezouata Formation. The Fezouata Formation occurs in the lower part of the Lower to lower Middle Ordovician Outer Feijas Group, in the western, central and eastern Anti Atlas Mountains, southern Morocco (Destombes et al. 1985; Gutierrez Marco & Martin 2016). It comes from The Konservat Lagersttten of Lower Fezouata