Trilobita - Ptychopariida - Catillicephalidae
Full reference: R. A. Fortey. 1983. Cambrian-Ordovican trilobites from the boundary beds in western Newfoundland and their phylogenetic significance. in D. E. G. Briggs and P. D. Lane, eds, Trilobites and other Early Arthropods, Special Papers in Palaeontology 30 179-211
Parent taxon: Catillicephalidae according to R. A. Fortey 1983
See also Jell and Adrain 2002 and Sepkoski 2002
Sister taxa: Acheilops, Buttsia, Catillicephala, Cryptoderaspis, Distazeris, Galeaspis, Lajishanaspis, Madarocephalus, Matania, Onchonotellus, Onchonotopsis, Onchonotus, Pemphigaspis, Peracheilus, Theodenisia, Theodensia, Triarthropsis, Tumidulaspis, Tuojiangella, Urbanaspis, Welleraspis, Yukonaspis
Subtaxa: Calculites microps Calculites stevensi
Type: Calculites microps
Ecology: fast-moving low-level epifaunal carnivore
Distribution:
• Ordovician of Canada (1: Newfoundland and Labrador collection)
• Cambrian of Canada (1: Quebec)
Total: 2 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.