Alticonodon

Naming history: Alticonodon was erected as a fossil mammal genus to classify dental material from the Milk River Formation. The genus name is derived from the Latin altus ("high") combined with the suffix "conodon" (a conventional element in fossil mammal names referring to tooth form). The taxon is typified by the species Alticonodon lindoei and was described in the paleontological literature as a distinct, geologically late member of triconodont-grade/eutriconodont mammals.

Alticonodon is known only from limited dental material: two specimens comprising a dentary fragment bearing two molars and an isolated lower last molar. No postcranial or complete skull material has been recovered, so reconstructions beyond dentary and molar morphology are not directly supported by fossils. The available molars are described as more specialized for shearing relative to earlier eutriconodonts.

There are no supernatural abilities attributed to Alticonodon in the sources. Paleobiological inferences based on its dentition indicate a hypercarnivorous diet: its shearing-specialized molars suggest it occupied a small vertebrate predator/scavenger niche. Authors have interpreted this specialization as possibly related to ecological interactions in a Milk River Formation mammal community dominated by metatherians and multituberculates, with Alticonodon and other triconodont-grade taxa representing a relictual element of non-therian mammal diversity in the Late Cretaceous of North America.