Artiopoda - Agnostida - Ptychagnostidae
Synonyms: Agnostonymus Öpik 1979, Onymagnostus (Agnostonymus) Öpik 1979
Parent taxon: Ptychagnostidae according to H. B. Whittington et al. 1997
See also Jell and Adrain 2002, Öpik 1979 and Sepkoski 2002
Sister taxa: Acidusus, Allobodochus, Aotagnostus, Goniagnostus, Lejopyge, Myrmecomimus, Pseudophalacroma, Ptychagnostus, Tomagnostus, Triplagnostus, Yakutiana
Subtaxa: Onymagnostus convexus Onymagnostus cuneiformis Onymagnostus hybridus Onymagnostus mundus Onymagnostus ovaliformis Onymagnostus rotundatus Onymagnostus semiermis Onymagnostus stenorrhachis
Ecology: slow-moving epifaunal detritivore
Distribution:
• Cambrian of Antarctica (1 collection), Australia (9), Canada (2: New Brunswick), Czechia (2), Kazakhstan (4), Mexico (1), Sweden (2)
• Amgan of Kazakhstan (4)
Total: 25 collections including 35 occurrences
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.