Trilobita - Phacopida - Calymenidae
Full reference: R. J., J.r. Ross and H. B. Barnes. 1967. Some Middle Ordovician Brachiopods and Trilobites from the Basin Ranges, Western United States. United States Geological Survey Professional Paper 523-D:D1-D4
Parent taxon: Calymenidae according to P. A. Jell and J. M. Adrain 2002
See also Fortey and Droser 1999 and Sepkoski 2002
Sister taxa: Calymenesum, Calymeninae, Carmoninae, Flexicalymeninae, Gravicalymene, Linguocalymene, Liocalymene, Neseuretus, Nipponocalymene, Onnicalymene, Papillicalymene, Pharostomatinae, Platycalymene, Pradoella, Reacalymene, Reedocalymene, Reedocalymeninae, Salterocoryphe, Spathacalymene, Tapinocalymene
Subtaxa: Protocalymene mcallisteri
Ecology: nektobenthic carnivore
Distribution:
• Whiterockian of United States (3: Nevada collections)
• Ordovician of Canada (1: Yukon), United States (7: California, Nevada)
Total: 11 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.