By Joschua Knüppe, retrieved from http://www.pteros.com/, a website dedicated to education about Pterosaurs.
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Name: Dorygnathus banthensis
Classification: Classification: Avemetatarsalia, Ornithodira, Pterosauromorpha, Pterosauria, Macronychoptera, Novialoidea, Breviquartossa, Rhamphorhynchidae, Rhamphorhynchinae
Dorygnathus is a close relative of Rhamphorhynchus known from the Posidonia Shale in Germany, living about 180 million years ago, in the Toarcian age of the Early Jurassic. As it wasn’t a contemporary of Rhamphorhynchus but rather a predecessor, it indicates the presence of this group of pterosaurs in Europe long before Rhamphorhynchus evolved. It is known from over fifty specimens that have been collected, and though multiple species of this genus have been assigned to it, only one remains valid at this point in time.
By Mark Witton, CC BY 4.0
Like other early pterosaurs, it had a long tail, that may have had a vane at the tip. It had long, sharp, outward-pointing teeth in its jaws, that would have allowed it to catch fish, grasping prey and preventing it from escaping. It had a short wingspan, about 1.5 meters long, and a small sternum, indicating that it had a different method of flight than other pterosaurs. It lived alongside another pterosaur, Campylognathoides, and in a marine environment, alongside such animals as Ichthyosaurs and Plesiosaurs.
http://www.pteros.com/pterosaurs/dorygnathus.html
https://en.wikipedia.org/wiki/Dorygnathus
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