07536 - Top Quality 2.31 Inch Paralejurus spatuliformis Devonian Trilobite Gastropods 721 families of gastropods are

721 families of gastropods are known

Its robust lateral serrations are distributed along the edge up until the sharp tip

Cerauroides

Synonym: Tetheodus Cope 1874

-A new species of Argillochelys (Testudines: Cryptodira: Cheloniidae) from the Ouled Abdoun phosphate basin

07536 - Top Quality 2.31 Inch Paralejurus spatuliformis Devonian Trilobite Gastropods 721 families of gastropods areNicely well preserved and prepared specimen. Paralejurus sp, Hawle and Corda 1847 (trilobite) Trilobita Corynexochida Styginidae Parent taxon: Styginidae according to P. A. Jell and J. M. Adrain 2002 See also Sepkoski 2002 Sister taxa: Alceste, Ancyropyge, Arctipeltis, Australoscutellum, Bojoscutellum, Breviscutellum, Bumastinae, Cekovia, Cornuscutellum, Cybantyx, Decoroscutellum, Delgadoa, Dentaloscutellum, Dulanaspis, Ekwanoscutellum, Failleana,