Cephalopoda - Ammonitida - Kossmaticeratidae

Alternative combination: Acanthoceras ultimum

Full reference: P. Marshall. 1926. The Upper Cretaceous ammonites of New Zealand. Transactions and Proceedings of the Royal Society of New Zealand 56:129-210

Belongs to Jacobites (Jacobites) according to R. A. Henderson 1970

See also Marshall 1926

Sister taxa: Jacobites (Jacobites) angularis, Jacobites (Jacobites) flexicostatus, Jacobites (Jacobites) marwicki, Jacobites (Jacobites) maximus, Jacobites (Jacobites) minimus, Jacobites (Jacobites) nodulosus, Jacobites (Jacobites) quadratus, Jacobites (Jacobites) stevensi, Jacobites (Jacobites) whangaroaensis

Ecology: fast-moving nektonic carnivore

Distribution: found only at N28/f626, Bull's Point, Kaipara Harbour (Cretaceous of New Zealand)

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Specimen images are retrieved through the ePANDDA API.