30856 - Well Preserved 1.19 Inch Cyphaspis (Otarion) cf. boutscharafinense Devonian Trilobite Triarthrus eatoni Orthoceratites
Yard notes & kiln story
Description
Orthoceratites
Calamites undulatus
Abbreviation: NWA 11921
Septaria usually contain crystals
Cooper 1953 (trilobite)
30856 - Well Preserved 1.19 Inch Cyphaspis (Otarion) cf. boutscharafinense Devonian Trilobite Triarthrus eatoni OrthoceratitesOtarion, Zenker 1833 (trilobite) Trilobita Proetida Aulacopleuridae Synonyms: Conoparia Hawle and Corda 1847 (no. 155231), Otarionella Weyber 1965 (no. 21276) Parent taxon: Aulacopleuridae according to P. A. Jell and J. M. Adrain 2003 See also Jell and Adrain 2002, Sepkoski 2002, Thomas and Owens 1978 and Whittington 1941 Sister taxa: Aulacopleura, Aulacopleurinae, Coignouina, Cyphaspides, Dixiphopyge, Goodsiraspis, Maurotarion, Namuropyge,