Search results
Results from the WOW.Com Content Network
Quetzalcoatlus (/ k ɛ t s əl k oʊ ˈ æ t l ə s /) is a genus of azhdarchid pterosaur that lived during the Maastrichtian age of the Late Cretaceous in North America. The type specimen, recovered in 1971 from the Javelina Formation of Texas, United States, consists of several wing fragments and was described as Quetzalcoatlus northropi in 1975 by Douglas Lawson.
Azhdarchids are mainly known for including some of the largest flying animals discovered, but smaller cat-size members have also been found. [2] Originally considered a sub-family of Pteranodontidae, Nesov (1984) [3] named the Azhdarchinae to include the pterosaurs Azhdarcho, Quetzalcoatlus, and Titanopteryx (now known as Arambourgiania). They ...
Hatzegopteryx (A-B), Arambourgiania (C) and Quetzalcoatlus sp. (D-E) The largest known pterosaur was Quetzalcoatlus northropi, at 127 kg (280 lb) and with a wingspan of 10–12 m (33–39 ft). [378] Another close contender is Hatzegopteryx, also with a wingspan of 12 m (39 ft) or more. [378] This estimate is based on a skull 3 m (9.8 ft) long ...
They both found Hatzegopteryx within the subfamily Quetzalcoatlinae, albeit in different positions. Andres found it in a clade with Arambourgiania and Quetzalcoatlus, while Pêgas and colleagues recovered it as the sister taxon to Albadraco, another pterosaur found in the Hațeg Basin. [17] [18] Their cladograms are shown below:
A troodontid theropod who is known from fossil teeth. Fossils have also been found in the Lance Formation in Wyoming. Pectinodon [96] [95] P. bakkeri [96] [95] Montana; UCM 38445, a fossilized tooth. Teeth of this genus have been found too. A troodontid theropod who is known from fossil teeth. Fossils have also been found in the Lance Formation ...
Lawson began his synecological research during his master's degree studying the paleoecology of the Tornillo Formation in Big Bend National Park, Texas.During his study of this Late Cretaceous intermontane basin community, he discovered the fossil remains of the giant pterosaur, Quetzalcoatlus Northropi, which he named in honor of John K. Northrop because of its similarity to Northrop's flying ...
Unwin defined the group as the most recent common ancestor of Pterodaustro guinazui and Quetzalcoatlus northropi, and all its descendants. [7] This group was named for the presence of a head crest in most known species, though this feature has since been found in more primitive pterosaurs and was probably an ancestral feature for all ...
Least-inclusive clade containing Quetzalcoatlus, Tapejara, and Dsungaripterus: May be synonymous with Azhdarchoidea if Dsungaripterus is more closely related to Quetzalcoatlus than either are to Tapejara; alternatively used for a clade containing Tapejaridae and Thalassodromidae [25] Tapejaromorpha: Andres et al., 2014 [5]