Trilobita - Olenida - Olenidae
Alternative combination: Triarthrus parapunctatus
Full reference: R. A. Fortey. 1974. The Ordovician trilobites of Spitsbergen. I. Olenidae. Norsk Polarinstitutt Skrifter 160:1-129
Belongs to Porterfieldia according to R. Ludvigsen and P. A. Tuffnell 1983
See also Fortey 1974
Sister taxa: Porterfieldia acava, Porterfieldia caecigena, Porterfieldia convergens, Porterfieldia cuadrata, Porterfieldia fischeri, Porterfieldia goldwyerensis, Porterfieldia maanssonae, Porterfieldia punctata, Porterfieldia sinensis, Porterfieldia thor, Porterfieldia turneri
Type specimen: SMA 84117, a cephalon/head (cranidium)
Ecology: fast-moving low-level epifaunal carnivore
Distribution:
• Whiterockian of Norway (2 collections)
Total: 2 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.