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Detailed sketch of the famous Late Triassic theropod Coelophysis bauri. Many remains of this dinosaur, including complete skeletons, have been found on a Ghost Ranch in New Mexico. Coelophysis was a three-meter-tall predator with a light build, a small body and a long neck and tail. There were numerous small knife-shaped teeth in the long and thin jaws. Bones of small reptiles were found inside some of the skeletons, which were believed to be Coelophysis chicks. Because of this, it gained fame as a cannibal dinosaur. Later it turned out that the victims were terrestrial crocodylomorphs like Hesperosuchus. Another specimen still has evidence of cannibalism - regurgitated tooth and bones of a baby Coelophysis next to the jaws. For a long time, it was believed that gracile and robust individuals existed, possibly being males and females, but later research showed that this was the result of varying growth and intraspecific variability.

Krita, 2025.

#coelophysis #liliensternus #lucianovenator #coelophysidae #dilophosaurus #theropod dinosaurs #chinle formation #late triassic fauna #paleoart

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Coelophysis bauri. That’s it, that’s the title.

#coelophysis #coelophysidae #dinosaur #paleoart #digital drawing

Day 4: Coelophysis.

Not only this is my favorite non-avian theropod dinosaur, but this is regard as only both state fossil and a state dinosaur of New Mexico.

#coelophysis #neotheropoda #coelophysidae #theropoda #dinosauria #dinosaur #theropod #my art #paleoart #draw dinovember #dinovember

Sauropodomorph drawings

Last year I did two works with sauropodomorphs in a black ballpoint pen (mostly).

The "prosauropod" Riojasaurus incertus is menacingly approaching two young coelophysoids Powellvenator podocitus, who are in a hurry to get out of the way of a large dinosaur. Late Triassic (Norian) of the Los Colorados formation, Argentina. In this work, I decided to try another type of texture with a ballpoint pen, hatching, in a reptile with small scales. In the process, I had to face difficulties and resort to white gouache for corrections (however, as usual), but in the end it turned out well. :)

Portrait of the titanosaur Sarmientosaurus musacchioi from the Late Cretaceous of Argentina. I started sketching this portrait many months ago before completion, but moved on to textures and shadows only in November. According to the idea, there should have been a dark background around the dinosaur, and I made it with a ballpoint pen, but the result did not satisfy me either live or scanned, so I decided to paint over it with a gel ink pen. It turned out to be a very good contrast.

#riojasaurus #riojasauridae #plateosaurus #prosauropoda #basal sauropodomorph #powellvenator #coelophysis #coelophysidae #theropod #sarmientosaurus #titanosaur #sauropod #sauropodomorpha #paleoart #black pen

Coelophysidae

Art from http://apsaravis.deviantart.com/art/Coelophysis-bauri-405981470

Group: Coelophysidae

Classification: llular Life, Archaea, Proteoarchaeota, Eukaryota, Unikota, Opisthokonta, Holozoa, Filozoa, Metazoa, Eumetazoa, Planulozoa, Bilatera, Nephrozoa, Deuterostomia, Chordata, Craniata, Vertebrata, Gnathostomata, Eugnathostomata, Teleostomi, Euteleostomi, Sarcopterygii, Rhipidistia, Tetrapodomorpha, Eotetrapodiforms, Elpistostegalia, Stegocephalia, Tetrapoda, Reptiliomorpha, Anthracosauria, Batrachosauria, Cotylosauria, Amniota, Sauropsida, Eureptilia, Romeriida, Diapsida, Neodiapsida, Sauria, Archosauromorpha, Archelosauria, Archosauriformes, Crurotarsi, Archosauria, Avemetatarsalia, Ornithodira, Dinosauromorpha, Dinosauriformes, Dinosauria, Saurischia, Eusaurischia, Theropoda, Neotheropoda, Coelophysoidea

Definition: All descendants of the most recent common ancestor of Coelophysis bauri and Procompsognathus triassicus

Organisms Within: Coelophysis, Camposaurus, Panguraptor, Procompsognathus, Pterospondylus, Segisaurus, Lepidus

Time Range: Shown below, numbers on the left in millions of years. Coelophysids first appeared around when Coelophysoids did, indicating once again the rapid diversification of early dinosaurs and early theropods. They went extinct in the Early jurassic, as other small theropods evolved and outcompeted them for resources, same as their less derived Coelophysoid cousins.

Characteristics:

Coelophysoids were small, gracile predators that were extremely common in the Late Triassic and Earliest Jurassic periods. The most famous, of course, is Coelophysis, with multiple species assigned to the genus from many locations. Some members of the group had small crests on their heads, that were probably used for display; in general they were fast, built for avoiding larger predators and hunting prey such as insects, lizards, early mammal relatives, things in general much smaller than they were that they would have to run and catch, potentially with their hands.

Art from https://en.wikipedia.org/wiki/Coelophysidae

Coelophysids were probably covered in protofeathers, like all early dinosaurs, and while it has been thought that they were pack hunters, evidence of flocking has not been found; rather, large deposits of fossils of these animals in places like the Coelophysis ghost ranch were due to phenomena such as flash floods and watering holes. Members of the group lived fast, and died young, maturing quickly and were probably warm blooded and very active.

Art from http://alpha-dilophosaurus.deviantart.com/art/Coelophysis-bauri-565335271

Fossil Locations: Coelophysids have been found throughout the globe, and given their rapid and early in the history of dinosaurs diversification it’s relatively likely that they evolved in South America, but it’s also possible they originated in the North American southwest. It is hard to tell with the large gaps this group has in the fossil record. Colored countries have fossil locations.

Biogeography: The Coelophysoids lived for a long period of time and were present in a wide variety of locations, as shown below.

Read more about Coelophysis here and here!

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