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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 what is now North America. The first specimen, recovered in 1971 from the Javelina Formation of Texas, United States, consists of several wing fragments.
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). [375] Another close contender is Hatzegopteryx, also with a wingspan of 12 m (39 ft) or more. [375] This estimate is based on a skull 3 m (9.8 ft) long ...
The outcrop, situated in the middle strata of the formation about 90 meters below the K-Pg boundary and within the local range of Alamosaurus fossils and below two sites that have yielded Quetzalcoatlus fossils, was dated to 69.0 plus or minus 0.9 million years old in 2010. [2] Indeterminate chasmosaurinae fossils have also been as well. [5]
The former contains azhdarchids closer related to Azhdarcho and are smaller in size, while the latter contains azhdarchids closer to Quetzalcoatlus and are much larger in size. [20] The second cladogram is by Xuanyu Zhou and colleagues in 2024, [22] which is based on the phylogenetic analysis by Rodrigo Pêgas in the same year. [21]
They assigned it to Quetzalcoatlus northropi and mistakenly identified it as a femur. A wingspan of 13 m (43 ft) was estimated. A wingspan of 13 m (43 ft) was estimated. [ 5 ] [ 2 ] However, nowadays, wingspan estimates for Q. northropi have been more moderate, at around 10 to 11 m (33 to 36 ft), which would still make it one of the largest ...
Similarly, being scared of open or deep bodies of water is going to be awful for you if you live near lakes or the sea. Phobias are mental disorders that are classified as anxiety disorders.
El Castillo (Spanish pronunciation: [el kas'tiʎo], 'the Castle'), also known as the Temple of Kukulcan is a Mesoamerican step-pyramid that dominates the center of the Chichen Itza archaeological site in the Mexican state of Yucatán.
Here, in Boulby mine (near the town of Saltburn), an underground mine which extends past the coast can be found. This means salt is being extracted from tunnels located beneath the seabed, with ...