Artiopoda - Olenida - Olenidae
Full reference: B. N. Cooper. 1953. Trilobites from the Lower Champlainian formations of the Appalachian Valley. Geological Society of America Memoir 55:1-69
Parent taxon: Oleninae according to R. Ludvigsen and P. A. Tuffnell 1983
See also Harrington and Leanza 1957, Jell and Adrain 2002 and Sepkoski 2002
Sister taxa: Plesioparabolina, Rampartaspis, Triarthrus
Subtaxa: Porterfieldia acava Porterfieldia caecigena Porterfieldia contayaensis Porterfieldia convergens Porterfieldia cuadrata Porterfieldia fischeri Porterfieldia goldwyerensis Porterfieldia humilis Porterfieldia maanssonae Porterfieldia parapunctata Porterfieldia punctata Porterfieldia sinensis Porterfieldia thor Porterfieldia turneri
Ecology: fast-moving low-level epifaunal carnivore
Distribution:
• Whiterockian of Canada (12: Newfoundland and Labrador collections), Norway (2)
• Chazyan of Canada (2: Newfoundland and Labrador)
• Arenig of Argentina (5), the United Kingdom (3)
• Ordovician of Argentina (9), Australia (1), Canada (1: Northwest Territories), China (2), Ireland (1), Peru (1), the United Kingdom (7), Venezuela (1)
Total: 47 collections including 52 occurrences
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.