Trilobita - Asaphida - Asaphidae
Parent taxon: Isotelinae according to J. D. Loch 2007
See also Jell and Adrain 2002, Neuman and Bruton 1974 and Sepkoski 2002
Sister taxa: Golasaphus, Hoekaspis, Isotelus, Megalaspides, Megistaspis, Notopeltis
Subtaxa: Isoteloides canalis Isoteloides flexus Isoteloides peri Isoteloides polaris Isoteloides saxosimontis
Ecology: fast-moving low-level epifaunal carnivore
Distribution:
• Chazyan of Canada (2: Northwest Territories, Ontario collections), United States (1: New York)
• Whiterockian of United States (1: Nevada)
• Arenigian of United States (2: Utah)
• Dawan of China (3)
• Arenig of China (14), United States (3: New York, Vermont)
• Canadian of Canada (2: Newfoundland, Newfoundland and Labrador)
• Ordovician of Canada (28: Newfoundland, Newfoundland and Labrador, Ontario, Quebec), China (5), the Russian Federation (1), United States (56: Nevada, New York, Oklahoma, Utah)
• Tremadoc of Canada (8: Alberta), China (1)
• Skullrockian of Canada (1: Newfoundland)
• Ibexian of United States (1: Nevada)
Total: 129 collections including 139 occurrences
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.