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A. acetabulum. In dinosaurs, the acetabulum (plural: acetabula) or hip socket is an opening in the pelvis formed by the ilium, pubis, and ischium that is visible in lateral and medial views. It accommodates the head of the femur, forming the hip joint. Most tetrapods show a closed acetabulum, in which the socket is completely filled with bone ...
Physiology of dinosaurs. The physiology of dinosaurs has historically been a controversial subject, particularly their thermoregulation. Recently, many new lines of evidence have been brought to bear on dinosaur physiology generally, including not only metabolic systems and thermoregulation, but on respiratory and cardiovascular systems as well.
Bruhathkayosaurus. Bruhathkayosaurus (/ bruːˌhæθkeɪoʊˈsɔːrəs /; meaning "huge-bodied lizard") is a controversial genus of sauropod dinosaur found in the Kallamedu Formation of India. The fragmentary remains were originally described as a theropod, but it was later determined to be a titanosaurian sauropod.
Scale diagram comparing a human and the longest-known dinosaurs of five major clades An adult male bee hummingbird, the smallest known and the smallest living dinosaur. Size is an important aspect of dinosaur paleontology, of interest to both the general public and professional scientists.
Ott & Larson, 2010. Triceratops (/ traɪˈsɛrətɒps / try-SERR-ə-tops; [1] lit. 'three-horned face') is a genus of chasmosaurine ceratopsian dinosaur that lived during the late Maastrichtian age of the Late Cretaceous period, about 68 to 66 million years ago in what is now western North America. It was one of the last-known non-avian ...
Giraffatitan (name meaning "titanic giraffe ") is a genus of sauropod dinosaur that lived during the late Jurassic Period (Kimmeridgian – Tithonian stages) in what is now Lindi Region, Tanzania. Only one species is known, G. brancai, named in honor of German paleontologist Wilhelm von Branca, who was a driving force behind the expedition that ...
Deinocheirus (/ ˌdaɪnoʊˈkaɪrəs / DY-no-KY-rəs) is a genus of large ornithomimosaur that lived during the Late Cretaceous around 70 million years ago. In 1965, a pair of large arms, shoulder girdles, and a few other bones of a new dinosaur were first discovered in the Nemegt Formation of Mongolia. In 1970, this specimen became the ...
Dinosaur anatomy. This category is for pages relating to dinosaur anatomy, such as physical features or parts. For anatomic features which are not possessed solely by dinosaurian groups, (such as the Triceratops neck frill which is also employed by the Frill-necked Lizard ), they may be included if it is fairly evident or common in dinosaur ...