Trilobita - Asaphida - Nileidae
Full reference: R. A. Fortey. 1975. The Ordovician trilobites of Spitsbergen. II. Asaphidae, Nileidae, Raphiophoridae and Telephinidae of the Valhollfonna Formation. Norsk Polarinstitutt, Skrifter 162:1-125
Parent taxon: Nileidae according to R. A. Fortey 1975
See also Fortey and Droser 1999
Sister taxa: Aocaspis, Barrandia, Berkutaspis, Borthaspidella, Bumastides, Elongatanileus, Homalopteon, Illaenopsis, Kodymaspis, Lakaspis, Neopsilocephalina, Nileidae stenorhachis, Nileus, Parabarrandia, Paraperaspis, Peraspis, Petrbokia, Platypeltoides, Psilocephalinella, Shenjiawania, Symphysurina, Symphysurus, Varvia
Subtaxa: Poronileus fistulosus Poronileus isoteloides Poronileus jugatus Poronileus vallancei
Type: Poronileus fistulosus
Ecology: fast-moving low-level epifaunal carnivore
Distribution:
• Whiterockian of Norway (3 collections)
• Ordovician of United States (1: Nevada)
Total: 4 collections including 6 occurrences
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.