Trilobita - Asaphida - Asaphidae
Alternative spellings: Asaphus (Isotelus), Isotellus
Synonym: Homotelus Raymond 1920
Parent taxon: Isotelinae according to A. W. Owen 1981
See also Amati 2014, Begg 1950, Henningsmoen 1960, Jell and Adrain 2002, Kanygin et al. 2019, M'Coy 1849, Owens and Fortey 2009, Phleger 1933, Sepkoski 2002 and Whittington 1941
Sister taxa: Golasaphus, Hoekaspis, Isoteloides, Kierarges, Megalaspides, Megistaspis, Notopeltis
Subtaxa: Homotelus catactus Homotelus elongatus Homotelus florencevillensis Homotelus gratiosus Homotelus indentus Homotelus laevis Homotelus laeviurus Homotelus stegops Homotelus stincharensis Homotelus ulrichi Isotelus aktchokensis Isotelus bradleyi Isotelus copenhagenensis Isotelus frognoensis Isotelus giganteus Isotelus gigas Isotelus harrisi Isotelus iowensis Isotelus kimmswickensis Isotelus maximus Isotelus megistos Isotelus parvirugosus Isotelus platyrhachis Isotelus rejuvenis Isotelus rex Isotelus simplex Isotelus skapaneidos Isotelus susae Isotelus violaensis Isotelus walcotti
Type: Asaphus (Isotelus) gigas
Ecology: fast-moving low-level epifaunal carnivore-detritivore
Distribution:
• Silurian of United States (1: Georgia collection)
• Chazyan of Canada (16: Northwest Territories, Quebec), United States (50: New York, Tennessee, Vermont)
• Whiterockian of Canada (16: Northwest Territories, Quebec), United States (17: Nevada, New York, Oklahoma, Vermont)
• Dawan of China (1)
• Arenig of China (2)
• Ordovician of Australia (1), Canada (61: Manitoba, Newfoundland, Northwest Territories, Nunavut, Nunvait, Ontario, Quebec, Québec), China (1), Kazakhstan (1), Norway (5), the Russian Federation (19), Sweden (1), the United Kingdom (12), United States (860: California, Georgia, Illinois, Illinois, Iowa, Indiana, Iowa, Iowa/Wisconsin, Kentucky, Maryland, Michigan, Minnesota, Missouri, Nevada, New York, Ohio, Oklahoma, Pennsylvania, Pennsylvania and Virginia, Tennessee, Virginia, Wisconsin)
• Ibexian of United States (1: Nevada)
Total: 1065 collections including 1120 occurrences
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.