†family Rioceratidae Kröger and Evans 2011 (mollusk)

Cephalopoda - Orthoceratoidea

Full reference: B. Kröger and D. H. Evans. 2011. Review and paleoecological analysis of the late Tremadocian – early Floian (Early Ordovician) cephalopod fauna of the Montagne Noire, France. Fossil Record 14(1):5-34

Parent taxon: Rioceratida according to A. H. King and D. H. Evans 2019

See also Kröger and Evans 2011

Sister taxon: Bactroceratidae

Subtaxa: Felinoceras Rioceras

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Ecology: fast-moving nektonic carnivore

Distribution:

• Canadian of United States (1: Maryland collection)

• Ordovician of France (5), Mexico (1), Morocco (2), United States (6: Minnesota, Nevada, New Mexico, Texas)

Total: 15 collections including 22 occurrences

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