#revueltosaurus

[barghest-land]

moooooore flocking: diictodon, megarachne, revueltosaurus and charnia

[isimp4shrimp]

My first paleostream flocking :) thank you @barghest-land for always posting your beautiful art and luring me into this discord

[impulseimpact]

paleostream flocking 14th of february 2025

diictodon megarachne charnia revueltosaurus

[ppaleoartistgallery]

#Paleostream 15/02/2025

here's today's #Paleostream sketches!!!

today we drew Diictodon, Megarachne, Revueltosaurus, and Charnia

[beamnglydrive]

2024 Lamborghini Revuelto

* Engine: 6.5L V12 Hybrid

* Power: 747 kW / 1,016 hp

* Torque: 725 Nm / 535 lb-ft

* Weight: 1,772 kg / 3,907 lbs

* 0-100 kph: 2.5 seconds

* Top Speed: 350 kph / 217 mph

[veloci-raptor]

Flocking Together #72

Diictodon/Megarachne

Revueltosaurus/Charnia

[apsaravis]

Desmatosuchus, Trilophosaurus and several revueltosaurs.

traditional drawing done with pens, colors added in Photoshop

[wtf-triassic]

Revueltosaurus

By @stolpergeist​

Etymology: Reptile from Revuelto Creek

First Described By: Hunt, 1989

Classification: Biota, Archaea, Proteoarchaeota, Asgardarchaeota, Eukaryota, Neokaryota, Scotokaryota, Opimoda, Podiata, Amorphea, Obazoa, Opisthokonta, Holozoa, Filozoa, Choanozoa, Animalia, Eumetazoa, Parahoxozoa, Bilateria, Nephrozoa, Deuterostomia, Chordata, Olfactores, Vertebrata, Craniata, Gnathostomata, Eugnathostomata, Osteichthyes, Sarcopterygii, Rhipidistia, Tetrapodomorpha, Eotetrapodiformes, Elpistostegalia, Stegocephalia, Tetrapoda, Reptiliomorpha, Amniota, Sauropsida, Eureptilia, Romeriida, Disapsida, Neodiapsida, Sauria, Archosauromorpha, Crocopoda, Archosauriformes, Eucrocopoda, Archosauria, Pseudosuchia, Suchia

Referred Species: R. callendari, R. hunti, R. olseni

Status: Extinct 

Time and Place: 237 to 208 million years ago, from the Carnian to the Norian of the Late Triassic

Revueltosaurus is known from Arizona, New Mexico, Texas, and North Carolina.

Physical Description: Revueltosaurus was a small pseudosuchian, estimated at growing about a meter long. Its teeth were wide and leaf-shaped, unlike most other pseudosuchians but similar to ornithischian dinosaurs. The rest of its body is only known scrappy disarticu    lated bones, so it’s a little difficult to reconstruct. The skull was slightly narrower than it was tall, and the front of the snout shows a smal “hooked” shape. The body was probably reasonably crocodile-like, although it likely held itself higher off the ground.

Diet: Revueltosaurus was herbivorous. Dental microwear suggests that it ate roughage such as twigs, branches, or roots.

Behavior: Based on how scrappy the remains are, there’s little we can tell about Revueltosaurus’s behavior. Its body was more plesiomorphic than those of contemporary shuvosaurids, who adopted a more dinosaur-like form, so it was unlikely to compete with them. Revueltosaurus’s lifestyle may have been similar to those of modern iguanas.

Ecosystem: Revueltosaurus lived in Late Triassic North America, a familiar landscape to followers of this blog. Revueltosaurus lived alongside other pseudosuchians like the larger herbivores Episcoposaurus and Typothorax, the more lithe herbivores Shuvosaurus and Poposaurus, the slender insecivorous Hesperosuchus, and the large carnivorous Postosuchus. The region was also home to early dinosaurs such as Chindesaurus and Coelophysis, phytosaurs such as Leptosuchus, Smilosuchus and Machaeroprosopus, the allokotosaur Trilophosaurus, the weird archosauromorph Vancleavea, the early turtle Proganochelys, rhynchocephalians such as Diphydontosaurus, drepanosaurs, cynodonts, the dicynodont Placerias, the early mammal Adelobasileus, temnospondyls such as Koskinonodon and Apachesaurus, and of course, Xenacanthus and Ceratodus. R. olseni also lived in North Carolina, alongside phytosaurs, early lepidosaurs, temnospondyls, and Crosbysaurus and Colognathus, a couple reptiles that are only known from fragments of jaws and teeth, but they’re bizarre fragments of jaws and teeth.

Other: All three species of Revueltosaurus were first known from teeth and jaws, and independently thought to be early ornithsichian dinosaurs. Then more remains were found, revealing that they were in fact pseudosuchians. This casted doubt on the identity of all other putative Triassic ornithischians except for Pisanosaurus, as they were mostly based on teeth. There’s also some disagreement among paleontologists over whether R. olseni and R. hunti belong to their own genera or Revueltosaurus, but either way they’d be closely related to R. callendari, so here we’re treating them as the same genus.

~ By Henry Thomas

Sources under the cut

Heckert, A.B., Miller-Camp, J.A. 2013. Tooth enamel microstructure of Revueltosaurus and Krzyzanowskisaurus (Reptilia: Archosauria) from the Upper Triassic Chinle Group, USA: Implications for functio, growth, and phylogeny. Palaeontologia Electronica 16.1.1A.

Heckert, A.B., Mitchell, J.S., Schneider, V.P., Olsen, P.E. 2012. Diverse new microvertebrate assemblage from the Upper Triassic Cumnock Formation, Sanford Subbasin, North Carolina, USA. Journal of Paleontology 86(2): 368-390.

Parker, W.G., Irmis, R.B., Nesbitt, S.J., Martz, J.W., Browne, L.S. 2005. The Late Triassic pseudosuchian Revueltosaurus callenderi and its implications for the diversity of early ornithischian dinosaurs. Proceedings of the Royal Society B 272(1566): 963-969.