Elrathia occidentalis Walcott 1884 (trilobite)

Artiopoda - Ptychopariida - Alokistocaridae

Alternative combination: Ptychoparia occidentalis

Full reference: C. D. Walcott. 1884. Paleontology of the Eureka district. United States Geological Survey Monograph 8(8):1-298

Belongs to Elrathia according to A. R. Palmer 1954

See also Walcott 1884

Sister taxa: Elrathia grazierensis, Elrathia idahoensis, Elrathia kingi, Elrathia longiceps, Elrathia permulta, Elrathia rara, Elrathia sampsoni, Elrathia spencei

Ecology: fast-moving epifaunal detritivore

Distribution: there are no occurrences of Elrathia occidentalis in the database

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