Trilobita - Olenida - Olenidae
Full reference: G. D. Edgecombe, B. D. E. Chatterton, N. E. Vaccari and B.G. Waisfeld. 2005. Triarthrinid trilobites (Olenidae) from the Middle and Upper Ordovician, Precordillera of Argentina. Journal of Paleontology 79(1):89-109
Belongs to Porterfieldia according to G. D. Edgecombe et al. 2005
Sister taxa: Porterfieldia acava, Porterfieldia caecigena, Porterfieldia convergens, Porterfieldia cuadrata, Porterfieldia fischeri, Porterfieldia goldwyerensis, Porterfieldia parapunctata, Porterfieldia punctata, Porterfieldia sinensis, Porterfieldia thor, Porterfieldia turneri
Type specimen: CEGH-UNC 21408, a cephalon/head (cranidium). Its type locality is Río Gualcamayo, which is in an Arenig offshore shelf limestone/shale in the Gualcamayo Formation of Argentina.
Ecology: fast-moving low-level epifaunal carnivore
Distribution: found only at Río Gualcamayo
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.