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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.
Ceratosaurus / ˌ s ɛr ə t oʊ ˈ s ɔːr ə s / (from Greek κέρας/κέρατος keras/keratos 'horn' and σαῦρος sauros 'lizard') was a carnivorous theropod dinosaur that lived in the Late Jurassic period (Kimmeridgian to Tithonian ages).
Dimorphodon (/ d aɪ ˈ m ɔːr f ə d ɒ n / dy-MOR-fə-don) was a genus of medium-sized pterosaur from Europe during the early Jurassic Period (about 201-191 million years ago). [1] It was named by paleontologist Richard Owen in 1859.
Pteranodontia is an extinct group of ornithocheiroid pterodactyloid pterosaurs.It lived during the Late Cretaceous (Turonian to Maastrichtian stages) of North America, South America, Europe and Africa. [1]
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 ...
Pteranodon sternbergi is an extinct species of the pteranodontid pterodactyloid pterosaur genus Pteranodon from the Late Cretaceous geological period of North America. P. sternbergi was among the largest pterosaurs, with a wingspan of up to 6 metres (20 ft) in males.
More resilient eumelanins (dark brown to black) are deposited in hot and humid regions, whereas in arid regions, pheomelanins (reddish to sandy color) predominate due to the benefit of crypsis. Among mammals , there is a marked tendency in equatorial and tropical regions to have a darker skin color than poleward relatives.