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Ordogeisonoceras Frey 1995 (mollusk)

Cephalopoda - Orthocerida - Geisonoceratidae

PaleoDB taxon number: 103326

Full reference: R. C. Frey. 1995. Middle and Upper Ordovician nautiloid cephalopods of the Cincinnati Arch region of Kentucky, Indiana, and Ohio. U.S. Geological Survey Professional Paper 1066P:1-126

Parent taxon: Geisonoceratidae according to B. Kröger 2013

Sister taxa: Angeisonoceras, Columenoceras, Geisonoceras, Harrisoceras, Joachimoceras, Jonesoceras, Nilssonoceras, Pleurorthoceras, Protokionoceras, Striacoceras, Temperoceras, Ugooloceras, Virgoceras, Zhuravlevia

Subtaxa: Ordogeisonoceras amplicameratum, Ordogeisonoceras foerstei

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Type: Orthoceras amplicameratum

Ecology: nektonic carnivore