Trilobita - Asaphida - Nileidae

PaleoDB taxon number: 19992

Synonym: Rokycania Pribyl and Vanek 1965 (taxon 155829)

Parent taxon: Nileidae according to P. A. Jell and J. M. Adrain 2002

Sister taxa: Aocaspis, Barrandia, Berkutaspis, Borthaspidella, Homalopteon, Kodymaspis, Neopsilocephalina, Nileidae stenorhachis, Nileus, Parabarrandia, Paraperaspis, Peraspis, Petrbokia, Platypeltoides, Poronileus, Psilocephalinella, Shenjiawania, Symphysurina, Symphysurus, Varvia

Subtaxa: Illaenopsis stenorhachis, Illaenopsis thomsoni

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Ecology: fast-moving low-level epifaunal carnivore