Dipnotetrapodomorpha - Dipnoi - Ceratodontidae
Alternative combination: Ptychoceratodus guentheri
Synonym: Ceratodus americanus Knight 1898
Full reference: O. C. Marsh. 1878. New species of Ceratodus, from the Jurassic. The American Journal of Science and Arts, series 3 15(85):76
Belongs to Ceratodus according to J. I. Kirkland 1987
Sister taxa: Ceratodus altus, Ceratodus avus, Ceratodus bovisrivi, Ceratodus capensis, Ceratodus cruciferus, Ceratodus curvus, Ceratodus daedaleus, Ceratodus disauris, Ceratodus emarginatus, Ceratodus felchi, Ceratodus frazieri, Ceratodus gibbus, Ceratodus gustasoni, Ceratodus heshanggouensis, Ceratodus heteromorphus, Ceratodus hieroglyphus, Ceratodus humei, Ceratodus hunterianus, Ceratodus kaupi, Ceratodus kaupii, Ceratodus latissimus, Ceratodus nageshwarai, Ceratodus obtusus, Ceratodus parvus, Ceratodus phillipsi, Ceratodus planasper, Ceratodus planus, Ceratodus rectangularis, Ceratodus robustus, Ceratodus rucinatus, Ceratodus vinslovii
Type specimens:
- Ceratodus guentheri: Yale Peabody Museum no. 205, a tooth. Its type locality is Felch Quarry 1, Garden Park (YPM) (=Marsh Quarry; =Marsh-Felch Quarry), which is in a Kimmeridgian/Tithonian channel sandstone/claystone in the Morrison Formation of Colorado.
- Ceratodus americanus: UWM 2001b, a tooth (left mandibular tooth).
Ecology: