†Ptyocephalus acclivus Hintze 1953
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Trilobita - Asaphida - Asaphidae
Alternative combinations: Kirkella accliva, Ptyocephalus accliva
Full reference: L. F. Hintze. 1953. Lower Ordovician trilobites from western Utah and eastern Nevadea. Utah Geological and Mineralogical Survey Bulletin 48:249 p.
Belongs to Ptyocephalus according to W. T. Dean 1989
See also Hintze 1953, Ross 1970 and Young 1973
Sister taxa: Kirkella declevita, Ptyocephalus vigilans, Kirkella yersini, Kirkella fillmorensis
Type specimen: 26289 (AMNH), a cephalon/head (cranidium)
Distribution:
• Ordovician of United States (6: Nevada, Utah collections)
• Tremadoc of Canada (1: Alberta)
Total: 7 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
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