Behavioral implications of an embedded tyrannosaurid tooth and associated tooth marks on an articulated skull of <i>Edmontosaurus</i> from the Hell Creek Formation, Montana.

ABSTRACT: Because teeth can be taxonomically distinct, particularly for non-mammalian carnivores such as non-avian dinosaurs, teeth that have broken off in the bone of another animal during feeding, predation or antagonism can provide direct information on carnivore behaviour. Here, we report on a semi-complete, articulated adult Edmontosaurus skull (MOR 1627) from the Hell Creek Formation with an embedded theropod tooth in the nasal. To ascertain taxonomic identity of the preserved tooth tip, we compare standardized crown and denticle measurements as well as denticle descriptions of the embedded tooth to known non-avian theropods recovered from the Hell Creek Formation. We also use computed tomography (CT) scans to investigate the full extent and orientation of the embedded tooth. The apicob

SUBMITTER: Wyenberg-Henzler TCA 

PROVIDER: S-EPMC12922588 | biostudies-literature | 2026

REPOSITORIES: biostudies-literature