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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.
The southern greater glider (Petauroides volans), [2] also known as the southern and central greater glider, [3] is a species of large gliding marsupial native to the forests of southeastern Australia. [2] It is a vulnerable species per the IUCN Red List classification, but since 5 July 2022 is listed as endangered under the EPBC Act in ...
Some gliding animals may use their gliding membranes for drag rather than lift, to safely descend. Gliding flight: falling at an angle less than 45° from the horizontal with lift from adapted aerofoil membranes. This allows slowly falling directed horizontal movement, with streamlining to decrease drag forces for aerofoil efficiency and often ...
The largest of non-pterodactyloid pterosaurs as well as the largest Jurassic pterosaur [16] was Dearc, with an estimated wingspan between 2.2 m (7 ft 3 in) and 3.8 m (12 ft). [17] Only a fragmentary rhamphorhynchid specimen from Germany could be larger (184 % the size of the biggest Rhamphorhynchus ). [ 18 ]
The gliding posture of the greater gliders is unique among marsupials. The forelimbs are folded so that the wrists are tucked under the chin, giving the patagium a triangular outline when outstretched. These animals regularly glide between high trees, and are able to use their tails to assist in steering.
Colugos are proficient gliders, and thought better adapted for flight than any other gliding mammal. They can travel as far as 70 m (230 ft) from one tree to another without losing much altitude, [ 10 ] with a Malayan colugo ( Galeopterus variegatus ) individual having been observed traveling about 150 m (490 ft) in one glide.
Draco is a genus of agamid lizards [1] that are also known as flying lizards, flying dragons or gliding lizards. These lizards are capable of gliding flight via membranes that may be extended to create wings ( patagia ), formed by an enlarged set of ribs.
[12] [13] For comparison, the living bird with the largest wingspan is the wandering albatross, averaging 3 m (9 ft 10 in) and spanning up to 3.7 m (12 ft 2 in). When grounded, Argentavis' height has been estimated at 1.5 to 1.8 m (4 ft 11 in to 5 ft 11 in), roughly equivalent to that of an adult human.