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The Collaborative International Dictionary
Dinosaurian

Dinosaur \Di"no*saur\, Dinosaurian \Di`no*sau"ri*an\, n. [Gr. ? terrible + ? lizard.] (Paleon.) One of the Dinosauria. [Written also deinosaur, and deinosaurian.] [1913 Webster] ||

Wiktionary
dinosaurian

a. Pertaining to dinosaurs. n. A dinosaur.

Wikipedia
Dinosaurian

Usage examples of "dinosaurian".

They certainly knew how to take advantage of the common inherited, dinosaurian features, among which were light, hollow leg-bones, the erect posture of their limbs, bipedality, and the elongate neck vertebrae.

The ceratopsids were mid-sized to large browsers by dinosaurian standards, 17 to 25 feet in length as adults.

All dinosaurs possess the socalled mesotarsal joint, in which the axis at the ankle joint runs straight between the two adjacent ankle bones and the other foot bones, providing the toed dinosaurian foot with great mobility.

In the course of evolution, these defining features of the Saurischia and the Ornithischia underwent many modifications, and the state of these changes together with appearance of other, new anatomic features characterize different subgroups of the two main dinosaurian lines.

This is probably also the place to mention Hal's older brother Mario's khaki-colored skin, an odd dead gray-green that in its corticate texture and together with his atrophic in-curled arms and arachnodactylism gave him, particularly from a middle-distance, an almost uncannily reptilian/ dinosaurian look.