Trilobita - Ptychopariida - Catillicephalidae
Synonym: Hallaspis Raasch and Lochman 1943
Parent taxon: Catillicephalidae according to P. A. Jell and J. M. Adrain 2002
See also Sepkoski 2002 and Tasch 1951
Sister taxa: Acheilops, Buttsia, Calculites, Catillicephala, Cryptoderaspis, Distazeris, Galeaspis, Lajishanaspis, Madarocephalus, Matania, Onchonotellus, Onchonotopsis, Onchonotus, Peracheilus, Theodenisia, Theodensia, Triarthropsis, Tumidulaspis, Tuojiangella, Urbanaspis, Welleraspis, Yukonaspis
Subtaxa: none
Ecology: fast-moving low-level epifaunal carnivore
Distribution:
• Tremadoc of Argentina (1 collection)
• Cambrian of Canada (1: Yukon), Kazakhstan (1), United States (10: Pennsylvania, South Dakota, Texas, Utah, Virginia, Wisconsin)
Total: 13 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.