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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 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.
Azhdarchidae (from the Persian word azhdar, اژدر, a dragon-like creature in Persian mythology) is a family of pterosaurs known primarily from the Late Cretaceous Period, though an isolated vertebra apparently from an azhdarchid is known from the Early Cretaceous as well (late Berriasian age, about 140 million years ago). [1]
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). [383] Another close contender is Hatzegopteryx, also with a wingspan of 12 m (39 ft) or more. [383] This estimate is based on a skull 3 m (9.8 ft) long ...
Quetzals (/ k ɛ t ˈ s ɑː l, ˈ k ɛ t s əl /) are strikingly colored birds in the trogon family. They are found in forests, especially in humid highlands, with the five species from the genus Pharomachrus being exclusively Neotropical, while a single species, the eared quetzal, Euptilotis neoxenus, is found in Guatemala, sometimes in Mexico and very locally in the southernmost United ...
The name Quetzalcoatl comes from Nahuatl and means "Precious serpent" or "Quetzal-feathered Serpent". [15] In the 17th century, Ixtlilxóchitl, a descendant of Aztec royalty and historian of the Nahua people, wrote, "Quetzalcoatl, in its literal sense, means 'serpent of precious feathers' but in the allegorical sense, 'wisest of men'."
The cassowary looks like a relic from another geologic era – it’s as tall as a person, has glossy black feathers and piercing eyes, walks on two feet, can weigh up to 140 pounds, and has a ...
The smaller species were thought to have become extinct, their niche filled by birds. [144] However, pterosaur decline (if actually present) seems unrelated to bird diversity, as ecological overlap between the two groups appears to be minimal. [145]
The bird at the center of the worst single-species mortality event in modern history isn’t recovering, scientists say. Julianna Bragg, CNN. December 26, 2024 at 11:18 AM.