30588 - Top Rare 0.98 Inch Apatokephalus Lower Ordovician Trilobite - Fezouata Fm Dinosaur Age Mammals Alternative combination: Calymene meeki retrorsa

Alternative combination: Calymene meeki retrorsa

Cephalopoda - Ammonitida - Vascoceratidae

Hemisphaerocoryphe

Brongniart 1828

• Devonian of China

30588 - Top Rare 0.98 Inch Apatokephalus Lower Ordovician Trilobite - Fezouata Fm Dinosaur Age Mammals Alternative combination: Calymene meeki retrorsaIt 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 Fm that spans the entire Tremadoc stage of the Ordovician system and is only present in