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The holotype specimen (IVPP V11553) is a nearly complete skeleton of an adult that includes a pair of long tail feathers and the impression of the horny beak. A second specimen, the paratype IVPP 11521, is fragmentary and includes some vertebrae and ribs, tail, sternum and pelvis, and femora.
There is a small, thin parietal crest of bone in the middle of the skull between the eyes and temporal fenestra. What is known of the premaxilla suggests that it had a broad, flattened plate that opposed the beak-like lower jaw and likewise was also toothless. A jaw fragment containing two large "canines" are also known from this specimen ...
Members of the group possessed a horny, typically toothless beak, unique amongst all synapsids. Dicynodonts first appeared in Southern Pangaea during the mid-Permian , ca. 270–260 million years ago, and became globally distributed and the dominant herbivorous animals in the Late Permian , ca. 260–252 Mya.
A toothless man drawn by Leonardo da Vinci. Toothlessness or edentulism is the condition of having no teeth. In organisms that naturally have teeth, it is the result of tooth loss. Organisms that never possessed teeth can also be described as edentulous.
Dsungaripterids are at least partially toothless, however the edentulous area of the beak is limited to the anterior end and relatively small. One possible exception would be Banguela , however the placement of this taxon within Dsungaripteridae has been questioned and it furthermore greatly differs from Apatorhamphus due to its blade-like ...
This synapsid was toothless, except for prominent tusks, hence the name. It probably cropped vegetation with a horny beak, much like a tortoise, while the tusks may have been used for digging up roots and tubers. Many species of Dicynodon have been named, and the genus is considered a wastebasket taxon.
The beak, bill, or rostrum is an external anatomical structure found mostly in birds, but also in turtles, non-avian dinosaurs and a few mammals. A beak is used for pecking, grasping, and holding (in probing for food, eating, manipulating and carrying objects, killing prey, or fighting), preening, courtship, and feeding young.
The type species, Struthiomimus altus, is one of the more common, smaller dinosaurs found in Dinosaur Provincial Park; their overall abundance—in addition to their toothless beak—suggests that these animals were mainly herbivorous or (more likely) omnivorous, rather than purely carnivorous. Similar to the modern extant ostriches, emus, and ...