Artiopoda - Agnostida - Agnostidae
Parent taxon: Agnostidae according to P. A. Jell and J. M. Adrain 2002
See also Sepkoski 2002
Sister taxa: Acmarhachis, Agnostinae, Agnostus, Aistagnostus, Barrandagnostus, Biciragnostus, Connagnostus, Eurudagnostus, Formosagnostus, Gymnagnostus, Hadragnostus, Idolagnostus, Ivshinagnostus, Kormagnostella, Kormagnostus, Kymagnostus, Lotagnostus, Micragnostus, Neoagnostus, Oncagnostus, Oxyagnostus, Peronopsinae, Ptychagnostinae, Quadrahomagnostus, Semagnostus, Strictagnostus, Trilobagnostus
Subtaxa: Homagnostus alaskensis Homagnostus captiosus Homagnostus claviformis Homagnostus comptus Homagnostus hoi Homagnostus hoiformis Homagnostus longiformis Homagnostus obesus Homagnostus piriformis Homagnostus seletensis Homagnostus sulcatus Homagnostus zhuangliensis
Ecology: slow-moving epifaunal detritivore
Distribution:
• Ordovician of United States (1: Texas collection)
• Tremadoc of United States (1: Vermont)
• Taoyuanian of China (12), the Russian Federation (3), South Korea (14)
• Cambrian of Argentina (1), Australia (2), Canada (13: Alberta, British Columbia, Newfoundland and Labrador, Yukon), China (8), Greenland (1), Kazakhstan (26), Norway (16), the Russian Federation (3), South Korea (1), Sweden (3), United States (25: Alaska, California, Idaho/ Utah, Nevada, Nevada and Utah, South Dakota, Texas, Utah, Virginia, Wyoming)
Total: 130 collections including 179 occurrences
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.