#azhdarchoidea

[he-who-needs-to-be-silenced]

[esmaniottoart]

Sketch_Hateful Hatzegopteryx.

Pencils, 2022.

[harpagornis]

"Early pterosaurs were bad on land you say?" nah

A recent study concluded that early pterosaurs were arboreal and incapable of moving efficiently on the ground, with derived pterodactyloids being more efficient walkers. This is a traditional view on pterosaur evolution... which ignores a study that has concluded that early pterosaurs were efficient on the ground as well, as well as flat out ignoring a study showing non-pterodactyloid Rhamphichnus trackways (though granted, one study finds them to be non-pterosaurian).

I will say, this study does offer interesting prospects, including that most non-pteranodontian ornithocheiroids* were arboreal, which is a goldmine for paleoart. But I can't stand seeing so many studies disregarded to arrive at this paper's conclusion.

*as in, actual ornithocheiroids, and not the Kellner definition as Pteranodontia + Dsungaripteroidea + Azhdarchoidea. Feels so good to use it in the proper context again!

In the end? Maybe early pterosaurs were more arboreal than pterodactyloids on average. But they were no slops on the ground.

[catboybiologist]

Okay, so, I don't know how much specific interest you may or may not have in pterosaurs, I can't recall seeing you mention them before (but also my memory is... ummm...).

So basically, which gender are you, rhamphorhynchoid or pterodactyloid?

As with any favorite or binary choosing question, especially about gender and extinct life, I can't choose! But if I had to, I would choose rhamphorynchoids. They're honestly cute in a way, and so much more elegant than those dirty, clumsy looking, dopey pterodac- *stabbed*

Agh

Oh god

Oh no

Oh fuck

All glory to Pterodactyloidea.

All glory to Tapejara.

All glory to Hatzegopteryx.

All glory to Quetzalcoatlus.

All glory to Azhdarchoidea.

[alphynix]

Leptostomia begaaensis here is a recently-discovered pterosaur that lived during the mid-Cretaceous period, around 100 million years ago.

Its fossil remains were found in the Kem Kem beds of Morocco – ancient river deposits famous for yielding some of the newer specimens of the bizarre aquatic dinosaur Spinosaurus – and consist of just a couple of small pieces of jaw bones.

But those fragments are rather weird for a pterosaur.

While it's hard to tell for certain from such meagre remains, Leptostomia might have been part of the azhdarchoid lineage, related to both the elaborately-crested tapejarids and the terrestrial-stalking giants like Quetzalcoatlus. And if it was indded an azhdarchoid it was an especially tiny one, possibly the smallest known member of the whole group. Based on the proportions of its relatives it would have stood just 30cm tall (1') with a wingspan of 60-70cm (2'-2'4"), roughly comparable in size to a modern pigeon.

And it had an incredibly long beak that tapered to a thin delicate tip, resembling the beaks of modern probe-feeding shorebirds more than any other known pterosaur. It may have been specialized for the same sort of ecological niche, poking around in mud and shallow water for small invertebrates and snapping them up, possibly detecting its hidden prey using super-sensitive nerve endings in the tip of its beak.

———

Nix Illustration | Tumblr | Pillowfort | Twitter | Patreon

[extinctworld-ua]

Aurorazhdarcho

Aurorazhdarcho – рід птерозаврів з надродини Azhdarchoidea, включає єдиний типовий вид – Aurorazhdarcho primordius. Жили наприкінці юрського періоду (верхній титонський вік, 150,8-145,0 млн років тому) на території сучасної Німеччини.

Повний текст на сайті "Вимерлий світ":

https://extinctworld.in.ua/aurorazhdarcho/

[a-dinosaur-a-day]

Bogolubovia orientalis

By Julio Lacerda; retrieved from http://www.pteros.com/, a website dedicated to education about Pterosaurs.

A reminder that we will not be able to do every pterosaur until we reach $240 in donations on our patreon, so please donate even a dollar if you can.

Name: Bogolubovia orientalis

First Described: 1989

Described By: Nessov

Classification: Avemetatarsalia, Ornithodira, Pterosauromorpha, Pterosauria, Macronychoptera, Novialoidea, Breviquartossa, Pterodactylomorpha, Monofenestrata, Pterodactyliformes, Caelidracones, Pterodactyloidea, Eupterodactyloidea, Ornithocheiroidea, Azhdarchoidea, Azhdarchidae

Bogolubovia is an Azhdarchid only known from a fragment of cervical vertebra which is now lost. It hailed from the Campanian Rybushka Formation of Russia (83-75 Ma, roughly). It was named as Ornithostoma orientalis in 1914, and then moved to its own genus Bogolubovia in 1989. It probably had a wingspan of around 4 meters. Not much else to say about it.

Source:

https://www.pteros.com/pterosaurs/bogolubovia.html

[electro-strike]

Dinoetae AU Wildlife

Tyrannosaurids: Tyrannosaurus Rex- 14ft tall Dromaeosaurid: Microraptorinae indet- 1ft tall Acheroraptor- 2ft tall Dakotaraptor- 6ft tall Troodontidae: Paronychodon- 2.5ft tall Pectinodon- 3.5 ft tall Coelurosauria: Richardoestesia sp- 4ft tall

Ankylosauria: Denversaurus- 5ft tall Ankylosaurus- 6.5ft tall Ornithomimosauria: Orcomimus- 5ft tall Ornithomimus- 6ft tall Struthiomimus- 7ft tall Sauropoda: Titanosauridae indet- 30ft tall Alamosaurus- 36ft tall Ceratopsia: Leptoceratops- 2.5ft tall Tatankaceratops- 4ft tall Nedoceratops- 11ft tall Triceratops prorsus- 12ft tall Triceratops horridus- 12.5ft tall Torosaurus- 13ft tall

Parksosauridae: Thescelosaurus garbanii- 3ft tall Thescelosaurus neglectus- 5ft tall Parvicursorinae: Trierarchuncus- 2ft tall Ornithomimus minutus- 2.8ft tall Hadrosauridae: Edmontosaurus annectens- 14ft tall Lambeosaur indet- 10ft tall Oviraptorosauria: Caenagnathidae Indeterminate- 5ft Elimisaurine indeterminate- 6ft Anzu- 9ft Pachycephalosauria: Sphaerotholus- 2ft tall Dracorex- 3ft tall Stygimoloch- 4ft tall Pachycephalosaurus- 5ft tall

Azhdarchoidea: Quetzalcoatlus lawsoni- 8ft tall Azhdarchidae spp- 12ft tall Quetzalcoatlus northropi- 16ft tall Pteranodontoidea: Pteranodon longiceps female- 3.2ft tall Geosternbergia female- 3.3ft tall Pteranodontia indet- 4ft tall Pteranodon longiceps male- 5.9ft tall Geosternbergia male- 6ft tall

[theukone-news]

Ученые раскрыли пикантные подробности про летающего динозавра: фото

Палеонтологи Портсмутского университета определили, для чего был нужен птерозаврам, которые обитали на Земле в меловом периоде, крупный, красочный гребень на голове. Результаты исследования были опубликованы в журнале Cretaceous Research. В останках обнаруженного на острове Уайт (Великобритания) летающего динозавра семейства тапеяридов (Tapejarid) из надсемейства Azhdarchoidea ученые обнаружили яркий отличительный признак. По ... Читать далее

[smhennessy-blog]

#tupandactylus #tupandactylusimperator #azhdarchoidea #pterosaur #paleoart

[archosaurophilia]

Parasitic Hatzegopteryx by StygimolochSpinifer

"Inspired by the nest parasitism idea mentioned here, here's a quick sketch of a young Hatzegopteryx in a Eurazhdarcho nest having a snack.

How did the mother lay the egg in the nest? Well... life finds a way?"

[he-who-needs-to-be-silenced]

Dsungaripterus weii

[esmaniottoart]

Sketch_Tired Tupuxuara.

Pencils, 2020.

[esmaniottoart]

Sketch_Quetzy Quetzalcoatlus.

Pencils, 2019.

[a-dinosaur-a-day]

Navajodactylus boerei

By Midiaou Diallo; retrieved from http://www.pteros.com/, a website dedicated to education about Pterosaurs.

A reminder that we will not be able to do every pterosaur until we reach $240 in donations on our patreon, so please donate even a dollar if you can.

Name: Navajodactylus boerei

First Described: 2011

Described By: Sullivan and Fowler

Classification: Avemetatarsalia, Ornithodira, Pterosauromorpha, Pterosauria, Macronychoptera, Novialoidea, Breviquartossa, Pterodactylomorpha, Monofenestrata, Pterodactyliformes, Caelidracones, Pterodactyloidea, Eupterodactyloidea, Ornithocheiroidea, Azhdarchoidea, Neoazhdarchia, Neopterodactyloidea, ?Azhdarchidae

Navajodactylus is a medium-sized pterosaur (11.5 foot wingspan) that lived around 75 million years ago. The holotype, a partial wing, is a from the Kirtland Formation of New Mexico, with more material known from the DInosaur Park Formation Alberta, Canada. The wing is really weird - the first digit of the wing finger has an unusual shape of the extensor tendon process (the thing that connects into the metacarpal) that isn’t seen in any other pterosaur. It was referred to Azhdarchidae even though it doesn’t have many distinctively Azhdarchid features; at the time, no other non-Azhdarchid pterosaurs are known that lived inland.

Source:

Sullivan, R.M., Fowler, D.W. 2011. Navajodactylus boerei, n. gen., n. sp., (Pterosauria, ?Azhdarchidae) from the Upper Cretaceous Kirtland Formation (upper Campanian) of New Mexico”. New Mexico Museum of Natural History and Science, Bulletin 53: 393-404.

[a-dinosaur-a-day]

Phosphatodraco mauritanicus

By Joschua Knüppe ; retrieved from http://www.pteros.com/, a website dedicated to education about Pterosaurs.

A reminder that we will not be able to do every pterosaur until we reach $240 in donations on our patreon, so please donate even a dollar if you can.

Name: Phosphatodraco mauritanicus

First Described: 2003

Described By: Pereda-Suberbiola et al. 2003

Classification: Avemetatarsalia, Ornithodira, Pterosauromorpha, Pterosauria, Macronychoptera, Novialoidea, Breviquartossa, Pterodactylomorpha, Monofenestrata, Pterodactyliformes, Caelidracones, Pterodactyloidea, Eupterodactyloidea, Ornithocheiroidea, Azhdarchoidea, Neoazhdarchia, Neopterodactyloidea, Azhdarchidae

Phosphatodraco is yet another Azhdarchid. It lived at the very end of the Cretaceous (66 million years ago) in what is now phosphatic basins of Morocco (hence the name). The only fossils definitively known to be from this species are neck vertebrae - one series of five vertebrae, and another isolated one. The neck appears to not have been as elongated as in taxa like Quetzalcoatlus, implying it may have been a more basal Azhdarchid. Its wingspan is estimated at being around 16.4 feet. The deposit it’s known from was evidently marine, as evidenced by the hundreds of oceangoing pterosaurs. Presumably Phosphatodraco was terrestrial like other Azhdarchids, explaining its relative rarity.

Source:

https://www.pteros.com/pterosaurs/phosphatodraco.html