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Dicynodont fossils Diictodon life-sized model. The dicynodont skull is highly specialised, light but strong, with the synapsid temporal openings at the rear of the skull greatly enlarged to accommodate larger jaw muscles. The front of the skull and the lower jaw are generally narrow and, in all but a number of primitive forms, toothless.
Still, some scientists have suggested that oviraptorids may have fed on shelled food items like eggs or shellfish. However, animals specialized for eating shelled food typically have broad, crushing beaks or teeth. In contrast, the jaws of oviraptorids had thin, sharp edges probably supporting shearing beaks, ill-suited for cracking shells.
Ornithomimids were long-legged, bipedal, ostrich-like dinosaurs with toothless beaks. 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 ...
Ornithomimus was a swift, bipedal dinosaur which fossil evidence indicates was covered in feathers and equipped with a small toothless beak that may indicate an omnivorous diet. It is usually classified into two species: the type species , Ornithomimus velox , and a referred species, Ornithomimus edmontonicus .
Indications for this included the combination of long wings that appear adapted for soaring, leg proportions (long femur, short foot) that are similar to those of frigate birds and kingfishers, and occipital foramen that opened at the back, a toothless beak similar to but shorter than that of kookaburras, and the absence of specializations for ...
Ornithomimidae (meaning "bird-mimics") is an extinct family of theropod dinosaurs which bore a superficial resemblance to modern ostriches.Ornithomimids were fast, omnivorous or herbivorous dinosaurs known mainly from the Late Cretaceous Period of Laurasia (now Asia and North America), though they have also been reported from the Lower Cretaceous Wonthaggi Formation of Australia.
Pteranodon (/ t ə ˈ r æ n ə d ɒ n /; from Ancient Greek: πτερόν, romanized: pteron ' wing ' and ἀνόδων, anodon ' toothless ') [2] [better source needed] is a genus of pterosaur that included some of the largest known flying reptiles, with P. longiceps having a wingspan of over 6 m (20 ft).
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.