Aquilops

Aquilops is a genus of ceratopsiandinosaur that lived in North America during the Early Cretaceous, about 109 million to 104 million years ago. In 1997, the only known skull was found in the Cloverly Formation of Carbon County, southern Montana, and was made the holotype specimen of the new genus and species Aquilops americanus in 2014. The generic name is derived from the Latin and Greek words for "eagle" and "face", in reference to the dinosaur's hooked beak, and the specific name refers to it being the first early neoceratopsian found in North America. The holotype consists of a partial skull and lower jaws of a probably subadult individual. Aquilops was prominently featured in the 2025 film Jurassic World: Rebirth, an occasion used for scientific outreach.

A small neoceratopsian, the only known skull of Aquilops is 84.2 mm (3.31 in) long as preserved, from which a total length of about 60 cm (24 in) and a weight of about 1.6 kg (3.5 lb) has been extrapolated. A fully grown Aquilops would probably have been 1 m (39 in) or less. As an early ceratopsian, it would probably have been bipedal. The upper margin of the skull in front of the eyes was steeply inclined, and the skull was triangular when seen from the top.