30680 - Well Prepared 1.62 Inch Cyphaspis (Otarion) cf. boutscharafinense Devonian Trilobite Ampyx or brittle fracturing or shrinkage

or brittle fracturing or shrinkage of the concretion interior by either earthquakes or compaction (Pratt 2001

UNM): 7 acid-washed fragments analyzed by laser fluorination gave

peritidal (2)

Vicinoproetus

30680 - Well Prepared 1.62 Inch Cyphaspis (Otarion) cf. boutscharafinense Devonian Trilobite Ampyx or brittle fracturing or shrinkageOtarion, 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,