Cephalopoda - Tarphycerida - Trocholitidae

Full reference: E. O. Ulrich, A. F. Foerste, A. K. Miller and W. M. Furnish. 1942. Ozarkian and Canadian cephalopods, Part I: Nautilicones. Geological Society of America Special Papers 37:1-157

Parent taxon: Trocholitidae according to R. E. Crick 1981

See also Sepkoski 2002, Teichert et al. 1964 and Ulrich et al. 1942

Sister taxa: Arkoceras, Curtoceras, Discoceras, Graftonoceras, Hardmanoceras, Litoceras, Palaeonautilus, Paradiscoceras, Plectolites, Schroederoceras, Trocholites, Trocholitoceras, Wichitoceras

Subtaxa: Jasperoceras costatum

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Type: Jasperoceras costatum

Ecology: fast-moving nektobenthic carnivore

Distribution: found only at 1 1/2 miles east of Jasper (Ordovician of Arkansas)

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Specimen images are retrieved through the ePANDDA API.