Trilobita - Phacopida - Pterygometopidae
Alternative combination: Pterygometopus annulatus
Synonyms: Calliops strasburgensis Ulrich and Delo 1940, Pterygometopus gracilens Raymond 1925
Belongs to Calyptaulax according to F. C. Shaw and T. E. Bolton 2011
See also Raymond 1925, Shaw 1968 and Shaw 1974
Sister taxa: Calyptaulax angusta, Calyptaulax brongniartii, Calyptaulax callicephalus, Calyptaulax callirachis, Calyptaulax cornwalli, Calyptaulax glabella, Calyptaulax holstonensis, Calyptaulax hunteri, Calyptaulax incepta, Calyptaulax norvegicus, Calyptaulax sillimani
Type specimens:
- Calyptaulax annulata: Carnegie Mus1384 (lectotype), a cephalon/head (cranidium).
- Calliops strasburgensis:
- Pterygometopus gracilens: MCZ 1725.
Ecology: fast-moving low-level epifaunal carnivore
Distribution:
• Whiterockian of Canada (6: Quebec collections), United States (13: New York, Vermont)
• Chazyan of United States (17: New York, Oklahoma)
• Ordovician of United States (3: Oklahoma, Virginia)
Total: 39 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.