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https://pterosaur.net/anatomy.php
The bones of pterosaurs are often very thin-walled, as well. That is, many of the bones are quite hollow, with most of the internal volume filled with air. Early pterosaurs had reasonably “average” bones, but most of the later species, especially the giants, had bones with incredibly thin walls and numerous internal bony struts to counter buckling.
https://en.wikipedia.org/wiki/Pterosaur_wing
Pterosaur wings were formed by bones and membranes of skin and other tissues. The primary membranes attached to the extremely long fourth finger of each arm and extended along the sides of the body.Clade: Ornithodira
http://bio.sunyorange.edu/updated2/pl%20new/29%20pterosaurs.htm
Pterosaurs were the first major group of vertebrates to evolve powered flight, although a few gliding reptiles are known from the Paleozoic. Pterosaurs possessed membranous wings that are supported by elongated 4th finger and the impressions of wings have been left in many fossils.
https://www.youtube.com/watch?v=esLbd0RR5RM
Oct 12, 2012 · BONES OF THE PTEROSAUR WING. This feature is not available right now. Please try again later.Author: Walter Jahn
https://www.amnh.org/exhibitions/pterosaurs-flight-in-the-age-of-dinosaurs/how-did-pterosaurs-fly
The solution? A pterosaur’s wing bones were hollow tubes, with walls no thicker than a playing card. Like bird bones, they were flexible and lightweight, while strengthened by internal struts. INSIDE THE WINGS. Recent discoveries show that pterosaur wing membranes were more than simple flaps of skin.
https://www.nationalgeographic.com/magazine/2017/11/pterosaurs-weirdest-wonders-on-wings/
Pterosaur wings consist of a membrane attached to each flank from shoulder to ankle and held out by a spectacularly elongated fourth finger running along the wing’s leading edge.
https://biology.stackexchange.com/questions/71458/how-are-the-wings-of-birds-pterosaurs-and-bats-related-to-each-other
But those bones have been arranged into wings in different ways: Pterosaurs have a lengthened pinky finger maintaining a flap of skin that makes up the wing; bats have three lengthened fingers with a flap of skin around them; and birds have small, fused finger bones with the surface of the wing being made up of feathers.
https://pterosaur.net/flight.php
The pterosaur wing would have produced large aerodynamic forces for both propulsion and weight support, just as in living flyers. Unlike the wings of birds, the wings of pterosaurs would have tended to change shape under aerodynamic load - something often referred to as 'passive cambering'. Camber refers to the curvature of a wing in cross section.
https://www.fossilera.com/fossils/6-5-pterosaur-pteranodon-bone-with-bite-mark-kansas
There was no bone type listed with this specimen, however judging by the shape and size, i would say it's a distal wing bone. Pteranodon is a genus of pterosaurs which included some of the largest known flying reptiles, with wingspans over 6 metres (20 ft).
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