Trilobita - Phacopida - Encrinuridae

Alternative combinations: Encrinuroides uncatus, Physemataspis (Prophysemataspis) uncatus, Prophysemataspis uncatus

Full reference: W. R. Evitt and R. P. Tripp. 1977. Silicified Middle Ordovician trilobites from the families Encrinuridae and Staurocephalidae. Palaeontographica Abteilung A 157:109-174

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

See also Edgecombe and Chatterton 1990, Evitt and Tripp 1977, Jell and Adrain 2002 and Lespérance and Desbiens 1995

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

Type specimen: USNM 217527, a cephalon/head (cranidium)

Distribution: found only at Loc. 8, Greenmount Church area (Ordovician of Virginia)

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Specimen images are retrieved through the ePANDDA API.