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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).
Alexander Kellner, for example, named several additional species for specimens previously classified as Pteranodon, and placed P. sternbergi in a distinct genus, Geosternbergia. Kellner re-defined Pteranodontidae as the most recent common ancestor of Pteranodon longiceps , Geosternbergia sternbergi and Dawndraco kanzai , and all of its descendants.
Most-inclusive clade containing Ornithocheirus but not Pteranodon: Pteranodontia: Marsh, 1887 [28] [7] Least-inclusive clade containing both Pteranodon and Nyctosaurus: May be synonymous with Pteranodontoidea if Pteranodon is more closely related to Ornithocheiromorpha than either are to Nyctosaurus: Pteranodontoidea: Kellner, 1996 [25]
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.
Discover the world of monkeys as pets in this informative video! Join us as we explore the challenges and considerations of owning these diverse and intelligent creatures. From the costs involved ...
Can you give another hint about today's Wordle? As a noun, this word refers to a loose-fitting garment that's worn over a person's clothes. It also means to hide or conceal something from view.
Cast of an assigned wrist bone. The first pterosaur remains from Romania were identified by Franz Nopcsa in 1899, and the first remains of Hatzegopteryx were found during a student dig in the late 1970s from the upper part of the Middle Densuş Ciula Formation of Vălioara, northwestern Hațeg Basin, Transylvania, western Romania, which has been dated to the late Maastrichtian stage of the ...
The following year, a US District judge agreed with the employees, but in her ruling allowed the Forest Service to continue using the retardant as it seeks a permit to do so from the US ...