DURING, VAN VRANKEN, BOYD, AHLBERG, WATERMERDAM-VERDEGAAL & VAN der LUBBE, 2025

Locality: NDGS L4327, Morton County, north Dakota.

Horizon: Hell Creek Formation.

Biostratigraphy:

Age: Upper Maastrichtian Stage, Late Senonian Subepoch, Late Gulf Epoch, Latest Cretaceous.

Material:

NDGS 12217: Tooth crown.

Note: Found next to a Tyrannosaurus rex tooth.

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