Pectinodon, Carpenter, 1982

Carpenter, Kenneth, 1982, Baby dinosaurs from the Late Cretaceous Lance and Hell Creek formations and a description of a new species of theropod, Contributions to Geology, University of Wyoming 20, pp. 123-134 : 129

Pectinodon new genus

Diagnosis: Crowns of teeth strongly compressed laterally and recurved. Anterior margin without serrations, denticles, or sharp translucent keel; edge usually rounded, but may have low, blunt, opaque keel or ridge. Posterior margin with large serrations having translucent edges. Serrations largest in middle, and may be subequal to crown’s tip in size. Posterior serrations perpendicular to vertical axis of tooth. Crown tip

directed posteriorly, almost parallel to crown base. Crown tip does not function as a piercing tip, but as first serration. First definitive serration occurs immediately below crown tip and differs from other small theropods (“dromaeosaurids”) in that it is not significantly smaller than crown tip. Near tooth’s base, two small serrations are crowded together. Anteroposterior length of tooth almost equal to height.

Type species: Pectinodon bakkeri new species

Etymology: pectin-, Latin for “ comb”; and - odon, Greek for “ tooth.”