Trettinoceras Nassichuk 1975 (ammonite)

Cephalopoda - Goniatitida - Schistoceratidae

Full reference: W. W. Nassichuk. 1975. Carboniferous ammonoids and stratigraphy in the Canadian Arctic archipelago. Geological Survey of Canada Bulletin 237:1-240

Parent taxon: Schistoceratidae according to W. M. Furnish et al. 2009

See also Korn 2006 and Sepkoski 2002

Sister taxa: Bendoceras, Branneroceras, Diaboloceras, Eoschistoceras, Inzeroceras, Paralegoceras, Paraschistoceras, Rodiezmoceras, Schistoceras

Subtaxa: Trettinoceras ellesmerensis

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Type: Trettinoceras ellesmerensis

Ecology: fast-moving nektonic carnivore

Distribution: found only at GSC 56430, Stepanow Creek, Hare Fiord, Ellesmere Island (Carboniferous of Nunavut)

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