Trilobita - Phacopida - Phacopidae
Full reference: K. S. W. Campbell. 1967. Trilobites of the Henryhouse Formation (Silurian) in Oklahoma. Oklahoma Geological Survey Bulletin 115:1-68
Parent taxon: Phacopidae according to P. A. Jell and J. M. Adrain 2002
See also Sepkoski 2002
Sister taxa: Acernaspis, Acuticryphops, Adastocephalum, Afrops, Altaesajania, Babinops, Boeckops, Burtonops, Chotecops, Denckmannites, Dianops, Dienstina, Drotops, Ductina, Echinophacopinae, Eldredgeops, Enigmapyge, Eocryphops, Eophacops, Illaenula, Inexpectatops, Kainops, Liolophops, Lochkovella, Nyterops, Paciphacops, Phacopidella, Phacopinae, Phacops, Plagiolaria, Pulvinocephalus, Rabienops, Reedops, Rhinophacops, Rhinoreedops, Sambremeusaspis, Signatops, Struveaspis, Teichertops, Trifoliops, Trimerocephalus, Zaplaops
Subtaxa: Ananaspis crossleii Ananaspis fecunda Ananaspis macdonaldi
Ecology: fast-moving low-level epifaunal carnivore
Distribution:
• Devonian of Australia (2 collections), Morocco (7), Spain (1)
• Silurian of Argentina (3), Australia (2), Austria (1), Canada (1: Quebec), the Czech Republic (18), Latvia (1), Morocco (4), the United Kingdom (1), United States (5: Arkansas, Oklahoma)
Total: 46 collections including 48 occurrences
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.