Search results
Results from the WOW.Com Content Network
The inferior processes or postzygapophysis project downward from a higher vertebra, and their articular surfaces are directed more or less forward and outward. The articular surfaces are coated with hyaline cartilage. In the cervical vertebral column, the articular processes collectively form the articular pillars. These are the bony surfaces ...
The zygosphene sits between the prezygapophysis in the neural arch, whereas the zygantrum sits between the postzygapophysis. [2] This joint is found in snakes, lacertids, teiids, Gymnophthalmids as well as in some iguanids and cordylids. [3] It is also found in several fossil groups such as plesiosaurians, nothosaurians and pachypleurosaurians. [4]
Neck reconstructions of Sigilmassasaurus (top) and Baryonyx. The validity of Sigilmassaurus, however, did not go unchallenged shortly after it was named.In 1996, Paul Sereno and colleagues described a Carcharodontosaurus skull (SGM-Din-1) from Morocco, as well as a neck vertebra (SGM-Din-3) which resembled that of "Spinosaurus B," which they therefore synonymized with Carcharodontosaurus. [11]
Size comparison. As with other neotheropods, the cervical vertebrae of Lucianovenator possess a complex system of fossae (pits) and laminae (ridges) that connect the main body of each vertebra (centra), front and rear joint plates (pre- and post-zygapophyses), and top and bottom rib facets (diapophyses and pleurapophyses) to each other.
Ferungulata ("wild beasts and ungulates") is a grandorder of placental mammals that groups together mirorder Ferae and clade Pan-Euungulata.It has existed in two guises, a traditional one based on morphological analysis and a revised one taking into account more recent molecular analyses.
The hyposphene-hypantrum articulation is an accessory joint found in the vertebrae of several fossil reptiles of the group Archosauromorpha.It consists of a process on the backside of the vertebrae, the hyposphene, that fits in a depression in the front side of the next vertebrae, the hypantrum.
Scientists think that Silesaurus was not a dinosaur, but rather a dinosauriform.Dinosaurian features lacking in Silesaurus include an enlarged deltopectoral crest (a muscle attachment on the humerus), and epipophyses (enlarged tendon attachment above the postzygapophysis) on the cervical vertebrae.
When viewed from the side, the hind end of this vertebra shows a developed left postzygapophysis, and the convex articular condyle (the condyle that connected with the following vertebra) and left postexapophysial process (which connected with the preexapophys at the front of the preceding vertebra) is in front of it, all lying in the same ...