Artiopoda - Phacopida - Pterygometopidae
Parent taxon: Eomonorachinae according to R. Ludvigsen and B. D. E. Chatterton 1982
See also Jell and Adrain 2002, Neuman and Bruton 1974, Owen 1981, Owen and Bruton 1980 and Sepkoski 2002
Sister taxa: Denella, Eomonorachus, Liocnemis, Podowrinella, Sceptaspis, Tricopelta
Subtaxa: Calyptaulax angusta Calyptaulax annulata Calyptaulax brongniartii Calyptaulax callicephalus Calyptaulax callirachis Calyptaulax cornwalli Calyptaulax glabella Calyptaulax holstonensis Calyptaulax hunteri Calyptaulax incepta Calyptaulax norvegicus Calyptaulax sillimani Calyptaulax strasburgensis
Type: Calyptaulax glabella
Ecology: fast-moving low-level epifaunal carnivore
Distribution:
• Chazyan of Canada (16: Northwest Territories collections), United States (18: New York, Oklahoma, Tennessee)
• Whiterockian of Canada (13: Newfoundland and Labrador, Northwest Territories, Quebec), United States (17: Nevada, New York, Oklahoma, Vermont)
• Ordovician of Belgium (1), Canada (47: British Columbia, Newfoundland, Northwest Territories, Nunavut, Nunvait, Ontario, Quebec), Ireland (8), Norway (24), the Russian Federation (9), the United Kingdom (25), United States (71: Georgia, Illinois, Iowa/Wisconsin, Kentucky, Missouri, Nevada, New York, Oklahoma, Virginia)
• Ibexian of United States (1: Nevada)
Total: 250 collections including 265 occurrences
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.