30440 - Well Preserved 0.26 Inch Densonella semele Middle Cambrian Trilobite - Utah USA Eldredgeia venustus A new mosasaurine from the

A new mosasaurine from the Maastrichtian (Upper Cretaceous) Phosphates of Morocco and its implications for mosasaurine systematics

Diplectrum

Norway (2)

Eustypocystis

† Asaphellus sp

30440 - Well Preserved 0.26 Inch Densonella semele Middle Cambrian Trilobite - Utah USA Eldredgeia venustus A new mosasaurine from theDensonella, Shaw 1952 (trilobite) Trilobita Ptychopariida Menomoniidae PaleoDB taxon number: 20451 Parent taxon: Menomoniidae according to P. A. Jell and J. M. Adrain 2002 See also Sepkoski 2002 Sister taxa: Balderia, Bolaspidella, Dresbachia, Howellaspis, Hysteropleura, Josina, Menomonia, Nephalicephalus, Paramenomonia, Tavsenia, Verditerrina Subtaxa: none Ecology: fast moving low level epifaunal suspension feeder Environments: carbonate (1