Peraspis Whittington 1965 (trilobite)

Trilobita - Asaphida - Nileidae

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

See also Fortey 1975 and Sepkoski 2002

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

Subtaxa: Peraspis erugata Peraspis kolouros Peraspis lineolata Peraspis omega Peraspis yukonensis

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Ecology: fast-moving low-level epifaunal carnivore

Distribution:

• Ordovician of Canada (3: Newfoundland and Labrador, Northwest Territories, Yukon collections), China (1), the United Kingdom (1), United States (7: British Columbia, California, Nevada)

• Llandeilo of Canada (1: Northwest Territories)

• Whiterockian of Canada (6: Newfoundland and Labrador), Norway (4), United States (2: Nevada)

Total: 25 collections including 26 occurrences

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Specimen images are retrieved through the ePANDDA API.


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