Trilobita - Phacopida - Encrinuridae
Full reference: P. J. Lespérance and D. Desbiens. 1995. Selected Ordovician trilobites from the Lake St. John District of Quebec and their bearing on systematics. Paleontological Society Memoir 42:1-19
Parent taxon: Encrinurinae according to D. K. Moss and S. R. Westrop 2014
See also Lespérance and Desbiens 1995 and Sepkoski 2002
Sister taxa: Billevittia, Brianurus, Coronocephalus, Cromus, Encrinuraspis, Encrinuroides, Encrinurus, Erratencrinurus, Fragiscutum, Frammia, Frencrinuroides, Johntempleia, Kailia, Physemataspis, Senticucullus
Subtaxa: Walencrinuroides autochthon Walencrinuroides polypleura Walencrinuroides rarus Walencrinuroides rolfi Walencrinuroides tremblayi
Type: Ceraurus rarus
Ecology: fast-moving low-level epifaunal carnivore
Distribution:
• Whiterockian of Canada (1: Northwest Territories collection)
• Chazyan of Canada (8: Northwest Territories)
• Ordovician of Canada (4: Northwest Territories), the United Kingdom (3), United States (4: Iowa/Wisconsin)
Total: 20 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.