Trilobita - Phacopida - Acastidae
Synonym: Cryphaeus Green 1837 [replaced name]
Parent taxon: Acastidae according to P.A. Jell and J.M. Adrain 2003
See also Sepkoski 2002 and Swain 1939
Sister taxa: Acastava, Acaste, Acastella, Acastellina, Acastoides, Acastopyge, Armorigreenops, Asteropyginae, Baniaspis, Bellacartwrightia, Braunops, Breizhops, Centauropyge, Chimaerastella, Coltraneia, Cryphina, Delocare, Deloops, Echinopyge, Feruminops, Gourdonia, Hallandclarkeops, Harringtonacaste, Heliopyge, Hexacosta, Hollardops, Kayserops, Kennacryphaeus, Kloucekia, Llandovacaste, Metacanthina, Mimocryphaeus, Morocconites, Neocalmonia, Neometacanthus, Paracryphaeus, Pelitlina, Phacopidina, Pilletina, Protacanthina, Pseudocryphaeus, Psychopyge, Sanidopyge, Scotiella, Sokhretia, Stummiana, Tolkienia, Treveropyge, Turcopyge, Walliserops
Subtaxa: Greenops perijaensis
Ecology: fast-moving low-level epifaunal carnivore
Distribution:
• Givetian of Venezuela (1 collection)
• Devonian of Canada (2: Ontario), Colombia (1), France (7), Libya (3), Spain (2), the United Kingdom (1), United States (173: Illinois, Indiana, Iowa, Michigan, New York, Ohio, Pennsylvania), Venezuela (1)
Total: 191 collections including 194 occurrences
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.