#dimorphodontidae

I've finally finished it! Dimorphodon macronyx is a dimorphodontid pterosaur from the Early Jurassic of England. Its remains were first found by Mary Anning in 1828 on the coast of Dorset. At first, the animal was classified as a Pterodactylus species, but sir Richard Owen, who described two more specimens, identified a new genus in 1859. Dimorphodon reached a meter in length and had a wingspan of 1.45 m. Its most recognizable feature is a 23 cm long skull with large holes to reduce weight. There were large "fangs" and numerous small teeth in the jaws. Dimorphodon is believed to have fed on small vertebrates and possibly insects. Judging by its relatively short wings and heavy skeleton, it was not a good flyer. This is a secondary feature: earlier, Triassic pterosaurs were good fliers.

Caelestiventus

Caelestiventus — рід птерозаврів, що існував у пізньому тріасі (208 млн років тому). Caelestiventus є єдиним прикладом нептеродактилоїдного птерозавра, що мешкав в пустелі, і він на 65 мільйонів років старший за інших відомих птерозаврів, що мешкали у пустелі. Крім того, це показує, що навіть найдавніші птерозаври були морфологічно та екологічно різноманітними і що Dimorphodontidae виникли…

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Caelestiventus hanseni, a pterosaur from the Late Triassic of Utah, USA. Living about 208-210 million years ago, it was very closely related to Dimorphodon -- but unlike its younger coastal-dwelling relative it instead lived in a desert environment made up of a massive sand dune sea with occasional interdunal lakes.

It’s the earliest known example of a desert pterosaur, over 60 million years older than other examples, suggesting that even fairly early in their evolutionary history these flying animals had already adapted to a much wider range of habitats than previously thought.

Although only known from a partial skull and a single wing bone, it was probably one of the largest Triassic pterosaurs with a wingspan of over 1.5m (4′11″). It had a “keel” on its lower jaw that may have supported a soft-tissue crest or a pelican-like throat pouch, and there were several different types of teeth in its mouth -- large pointed fangs at the front, “leaf-shaped” blades further back in its upper jaw, and numerous much smaller teeth along its lower jaw.