Trilobita - Phacopida - Pterygometopidae
Alternative combinations: Calliops callicephala, Calliops callicephalus, Calyptaulax callicephala, Dalmania callicephala, Phacops callicephalus, Pterygometopus callicephalus
Belongs to Calyptaulax according to C. E. Brett et al. 1999
See also Allen and Lester 1957, Delo 1935, Hall 1859 and Shaw 1968
Sister taxa: Calyptaulax angusta, Calyptaulax annulata, Calyptaulax brongniartii, Calyptaulax callirachis, Calyptaulax cornwalli, Calyptaulax glabella, Calyptaulax holstonensis, Calyptaulax hunteri, Calyptaulax incepta, Calyptaulax norvegicus, Calyptaulax sillimani
Ecology: fast-moving low-level epifaunal carnivore
Distribution:
• Ordovician of Canada (7: Ontario, Quebec collections), United States (23: Georgia, Illinois, Missouri, New York, Virginia)
Total: 30 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.