A potentially fatal cranial pathology in a specimen of Tarchia.

Skulls of the Mongolian ankylosaurids Shamosaurus, Tarchia, and Saichania were scanned for information about their internal anatomy. Computed tomography (CT) imaging of the Tarchia skull revealed substantial internal anatomical differences from known Campanian North American taxa, particularly in the morphology of the airway. In addition, unexpected anomalies were detected within the airway and sinuses.

An unusual theropod specimen from the late Maastrichtian of New Jersey.

A set of fragmentary bones excavated from the Inversand Company Pit at Sewell, Gloucester County, NJ, contains portions of broken hollow femur bone that display unusual interior structure. Two hypotheses are considered; (1) the lumina represents the distinctive physical features of medullary bone as described by M. Schweitzer in a series of papers; or (2) the interior bone growth is a pathology.