Artiopoda - Agnostida - Ptychagnostidae
Alternative spelling: Ptychagnostus (Triplagnostus)
Parent taxon: Ptychagnostidae according to E. B. Naimark and T. V. Pegel 2017
See also Ergaliev and Ergaliev 2008, Jell and Adrain 2002, Sepkoski 2002 and Westergård 1946
Sister taxa: Acidusus, Allobodochus, Aotagnostus, Goniagnostus, Lejopyge, Myrmecomimus, Onymagnostus, Pseudophalacroma, Ptychagnostus, Tomagnostus, Yakutiana
Subtaxa: Triplagnostus gibbus Triplagnostus scopus Triplagnostus ultimus
Ecology: slow-moving epifaunal detritivore
Distribution:
• Cambrian of Australia (9 collections), China (6), Kazakhstan (2), Poland (1), Sweden (1), United States (16: Utah)
• Solvan of Canada (1: Newfoundland and Labrador), Czechia (1), Norway (1)
• Amgan of the Russian Federation (2), United States (2: Utah)
Total: 42 collections including 47 occurrences
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.