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Pteranodon (/ t ə ˈ r æ n ə d ɒ n /; from Ancient Greek: πτερόν, romanized: pteron ' wing ' and ἀνόδων, anodon ' toothless ') [2] [better source needed] is a genus of pterosaur that included some of the largest known flying reptiles, with P. longiceps having a wingspan of over 6 m (20 ft).
This list of the prehistoric life of Arkansas contains the various prehistoric life-forms whose fossilized remains have been reported from within the US state of ...
Remains of hundreds of individuals, including juveniles, eggs and nests, have been found at a single site [56] Malefica: 2022 Aguja Formation (Late Cretaceous, Campanian) United States ( Texas) Its discovery suggests a greater diversity of basal hadrosaurids than previously thought Maraapunisaurus: 2018 Morrison Formation (Late Jurassic ...
Category: Lists of extinct animals by location. 1 language. ... Lists of extinct animals by country (2 P) R. Lists of extinct animals by region (6 P)
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.
All species listed here as extinct (no known individuals remaining) are designated by the International Union for Conservation of Nature (IUCN). Species which are extinct in the wild only reside in captivity. Species listed as possibly extinct are classified as being critically endangered, as it is unknown whether or not these species are ...
Oviraptor (/ ˈ oʊ v ɪ r æ p t ər /; lit. ' egg thief ') is a genus of oviraptorid dinosaur that lived in Asia during the Late Cretaceous period. The first remains were collected from the Djadokhta Formation of Mongolia in 1923 during a paleontological expedition led by Roy Chapman Andrews, and in the following year the genus and type species Oviraptor philoceratops were named by Henry ...
In a 2010 paper, Gareth Dyke and Kaiser showed that the breadth of the Confuciusornis egg was indeed smaller than what would be expected for a modern bird of similar size. [54] In a 2016 book, Luis Chiappe and Meng Qingjin stated that the aperture of a large specimen (DNHM-D 2454) indicates a maximum egg diameter of 23 millimetres (0.91 in).