†family Cyrtoniodontidae Hass 1959 (conodont)

Conodonta - Prioniodontida - Cyrtoniodontidae

Parent taxon: Prioniodontida according to W. C. Sweet 1988

See also Clark et al. 1981

Sister taxa: Acodontidae, Anticostiodus, Balognathidae, Balognathoidea, Distomodontidae, Histiodella, Multioistodontidae, Oepikodus, Oistodontidae, Paracordylodontidae, Paracordylodus, Periodontidae, Phragmodus, Plectodinidae, Prioniodinida, Prioniodinina, Prioniodontacea, Rhipidognathidae, Strachanognathidae

Subtaxa: Bryantodina

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Ecology: nektonic carnivore

Distribution:

• Ordovician of Argentina (10 collections), China (5), the Russian Federation (5), United States (4: Iowa, Minnesota, Wyoming)

Total: 24 collections including 25 occurrences

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