Artiopoda - Agnostida - Ptychagnostidae
Alternative combination: Onymagnostus (Agnostonymus) semiermis
Full reference: A. A. Öpik. 1979. Middle Cambrian agnostids: systematics and biostratigraphy. . Bureau of Mineral Resources, Geology and Geophysics, Bulletin 172:1-188
Belongs to Onymagnostus according to Laurie 2008
See also Öpik 1979
Sister taxa: Onymagnostus convexus, Onymagnostus cuneiformis, Onymagnostus hybridus, Onymagnostus mundus, Onymagnostus ovaliformis, Onymagnostus rotundatus, Onymagnostus stenorrhachis
Type specimen: CPC 14292, a cephalon/head
Ecology: slow-moving epifaunal detritivore
Distribution:
• Cambrian of Australia (5 collections)
Total: 5 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.