Artiopoda - Agnostida - Metagnostidae
Synonym: Neptunagnostella Pek 1977
Parent taxon: Metagnostidae according to O. A. Hoel 1999
See also Harrington and Leanza 1957, Jell and Adrain 2002, Neuman 1964, Robison and Pantoja-Alor 1968, Sepkoski 2002 and Whittington et al. 1997
Sister taxa: Anglagnostus, Arthrorhachis, Chatkalagnostus, Corrugatagnostus, Dividuagnostus, Galbagnostus, Geragnostella, Granuloagnostus, Homagnostoides, Trinodus
Subtaxa: Geragnostus (Geragnostella) Geragnostus (Geragnostus) Geragnostus (Microagnostus) Geragnostus (Novoagnostus) Geragnostus boutouryensis Geragnostus callaveiformis Geragnostus crassus Geragnostus fabius Geragnostus occitanus
Ecology: slow-moving epifaunal detritivore
Distribution:
• Dobrotivian of Portugal (1 collection)
• Chazyan of Canada (2: Newfoundland and Labrador)
• Whiterockian of Canada (9: Newfoundland and Labrador)
• Billingen of Estonia (2), the Russian Federation (2), Sweden (2)
• Arenig of Bolivia (1), Canada (2: Newfoundland and Labrador), China (11), France (2), Sweden (4), the United Kingdom (1)
• Klabava of Czechia (2), France (1)
• Arenigian of China (4), France (2)
• Dawan of China (1)
• Ordovician of Argentina (41), Australia (4), Canada (5: Alberta, Newfoundland, Newfoundland and Labrador, Northwest Territories, Northwest Terrorities), China (46), Colombia (1), Czechia (3), France (5), Iran (2), Mexico (1), Morocco (2), Norway (9), the Russian Federation (1), Spain (5), Sweden (9), the United Kingdom (7), United States (20: California, Maine, Montana, Nevada, New Mexico, Texas, Vermont)
• Skullrockian of Argentina (1)
• Cambrian to Ordovician of Argentina (5)
• Cambrian of Australia (1), China (5), United States (10: Alaska, Montana, Nevada, New Mexico, Texas, Utah)
Total: 232 collections including 258 occurrences
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.