21034 - Amazing Lehua sp Lower Ordovician Trilobite Fezouata Fm Psammechinus "A partial skeleton of the

"A partial skeleton of the basal mosasaur Halisaurus platyspondylus from the Severn Formation (Upper Cretaceous: Maastrichtian) of Maryland" (PDF)

as a direct predecessor of the Uralichas genus

which has as a result that some small pieces are lost forever

Case and Schwimmer 1988

Under petrography microscope

21034 - Amazing Lehua sp Lower Ordovician Trilobite Fezouata Fm Psammechinus "A partial skeleton of theLehua sp, Barton 1920 (trilobite) Trilobita Phacopida Cheiruridae Top rare trilobite species. 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