Search results
Results from the WOW.Com Content Network
Dinosaurs possessed single condyles allowing for rotational movement between atlas and skull. Mammals, on the other hand, show double condyles, limiting movement to one plane; here, rotational movement is mostly taking place between the atlas and the second vertebra, the axis.
The presence of a single occipital condyle in dinosaurs (including birds) and crocodilians contrasts with the condition in amphibians and synapsids (including mammals such as Homo sapiens), where two occipital condyles are present. Here, the occipital condyle is a single rounded projection that is present on the rear of the skull and ...
Dimetrodon (/ d aɪ ˈ m iː t r ə ˌ d ɒ n / ⓘ [1] or / d aɪ ˈ m ɛ t r ə ˌ d ɒ n /; [2] lit. ' two measures of teeth ') is an extinct genus of non-mammalian synapsid belonging to the family Sphenacodontidae that lived during the Cisuralian age of the Early Permian period, around 295–272 million years ago.
Tameryraptor ("thief from the beloved land") is an extinct genus of large carcharodontosaurid theropod dinosaurs from the Late Cretaceous (Cenomanian age) Bahariya Formation of Egypt. The genus contains a single species , T. markgrafi , known from partial skull bones and vertebrae, and leg bones.
Metacarpal II has a subtriangular proximal end and weakly separated distal condyles. As in other ankylosaurs, metacarpal III is the most robust and longest metacarpal in the manus. The distal condyles of metacarpal III are separate unlike Sauropelta and Nodosaurus. Metacarpal IV is roughly the same length as metacarpal I and is subpentagonal.
The mummy in bottom view, with outline drawing. AMNH 5060 is considered one of the best preserved dinosaur fossils ever discovered. [11] The scientific value of the mummy lies in its exceptionally high degree of preservation, the articulation of the bones in their original anatomical position, and the extensive skin impressions enveloping the specimen.
Scientists have found the U.K.’s largest dinosaur footprint site ever.. The tracks were discovered in a quarry in Oxfordshire — about 60 miles northwest of London — by quarry employee Gary ...
Megalosauridae is a monophyletic family of carnivorous theropod dinosaurs within the group ... Medial foramina on the quadrate adjacent to the mandibular condyles.