Acidiphorus williamsi Ross 1951 (trilobite)

Trilobita - Proetida - Bathyuridae

Alternative combinations: Eleutherocentrus williamsi, Goniotelina williamsi

Full reference: R. J., J.r. Ross. 1951. Stratigraphy of the Garden City Formation in northeastern Utah, and its trilobite faunas. Yale Peabody Museum of Natural History Bulletin 6:1-161

Belongs to Acidiphorus according to K. D. Brett and S. R. Westrop 1996

See also Neuman and Bruton 1974 and Whittington 1953

Sister taxa: Acidiphorus brevispicatus, Acidiphorus brighti, Acidiphorus hesperia, Acidiphorus kindlei, Acidiphorus ligo, Acidiphorus lineotuberculatus, Acidiphorus moorei, Acidiphorus rostratus, Acidiphorus scorpionis, Acidiphorus spinifer, Acidiphorus wahwahensis, Acidiphorus whittingtoni, Goniotelina brevis, Goniotelina ensifer, Goniotelina broeggeri, Goniotelina plicolabeonus, Goniotelus unicornis

Type specimen: YPM 18031, a cephalon/head (cranidium). Its type locality is Locality 13, Round Hill, Zone "J", which is in a Blackhillsian shallow subtidal limestone/chert in the Garden City Formation of Utah.

Ecology: fast-moving low-level epifaunal deposit feeder

Distribution:

• Ordovician of United States (2: Utah collections)

• Whiterockian of United States (9: Nevada, Oklahoma)

• Cassinian of the United Kingdom (1)

Total: 12 collections each including a single occurrence

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Specimen images are retrieved through the ePANDDA API.


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