Erratencrinurus vigilans Hall 1847 (trilobite)

Trilobita - Phacopida - Encrinuridae

Alternative combinations: Ceraurus vigilans, Encrinuroides vigilans, Encrinurus vigilans, Erratencrinurus (Erratencrinurus) vigilans

Synonyms: Encrinurus trentonensis Walcott 1880, Erratencrinurus trentonensis Walcott 1880

Full reference: J. Hall. 1847. Containing descriptions of the organic remains of the lower division of the New York system (equivalent of the Lower Silurian rocks of Europe). Paleontology of New York 1:1-338

Belongs to Erratencrinurus according to D. K. Moss and S. R. Westrop 2014

See also Bradley 1930, Hall 1847, Lespérance and Desbiens 1995, Ludvigsen 1979 and Okulitch 1935

Sister taxa: Erratencrinurus (Celtencrinurus), Erratencrinurus (Erratencrinurus), Erratencrinurus capricornu, Erratencrinurus lapworthi, Erratencrinurus neuter, Erratencrinurus spicatus, Erratencrinurus trippi, Erratencrinurus uncatus

Ecology: fast-moving low-level epifaunal carnivore

Distribution:

• Ordovician of Canada (4: Ontario, Quebec collections), United States (17: Illinois, Illinois, Iowa, Iowa/Wisconsin, Minnesota, New York)

Total: 21 collections each including a single occurrence

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