Artiopoda - Ptychopariida - Ptychopariidae
Full reference: F. A. Sundberg and L.B. McCollum. 2003. Trilobites of the lower Middle Cambrian Poliella denticulata biozone (new) of southeastern Nevada. Journal of Paleontology 77(2):331-359
Belongs to Syspacephalus according to F. A. Sundberg and L.B. McCollum 2003
Sister taxa: Ptychoparella lloydi, Ptychoparella mettae, Ptychoparella minuta, Ptychoparella usualis, Syspacephalus gregarius, Syspacephalus werneckensis, Syspacephalus crassus, Syspacephalus vapidus, Syspacephalus cadyi, Syspacephalus charops, Syspacephalus longus, Syspacephalus laticeps, Syspacephalus mccollumorum
Type specimen: USNM 517608, a cephalon/head. Its type locality is USNM 41985, Split Mountain, Clayton Ridge, which is in a Delamaran offshore shelf lime mudstone/lime mudstone in the Emigrant Formation of Nevada.
Ecology: fast-moving low-level epifaunal carnivore
Distribution:
• Cambrian of United States (17: California, Nevada collections)
Total: 17 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.