Trilobite Association

Submitted by: Mike Topor
Taxon: Phacops (Eldredgeops?) iowensis southworthi, Eldredgeops (Phacops) rana rana
Submit date: 2007-02-18
Location (approximate): Arkona, Lambton, ON
Stratigraphy: Hungry Hollow Formation
Age: Erian (Middle Devonian)
Submitter notes: Phacops iowensis southworthi eyes always contain 13 dorsoventral files and is only known from the Hungry Hollow member of the Widder formation where it is very rare. (The holotype is only a cephalon) The species of P. iowensis and E. rana co-exist in only a few Hamilton formations. This cephalon of P. iowensis southworthi is preserved a few millimeters atop a nearly complete specimen of E. rana rana. The cephalon measures 35mm wide and 23mm high. The E. Rana rana measures 35mm long

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