Lagerpeton chanarensis
By Scott Reid on @drawingwithdinosaurs
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Name: Lagerpeton chanarensis
Name Meaning: Rabbit Reptile
First Described: 1971
Described By: Romer
Classification: Avemetatarsalia, Ornithodira, Dinosauromorpha, Lagerpetidae
Lagerpeton is another early derived Dinosauromorph, known from the pelvis, hindlimbs, and some vertebrae, however, a lot can be gleaned about the animal regardless. It was found in the Chañares Formation of Argentina, as well as the Ischigualasto Formation of the same country, and the Chinle Formation of Colorado. It was about 70 centimeters long, and it would have been a very slender, lithe animal, fast moving, active, and potentially covered in filamentous integument. Footprints have even been assigned to the genus, namely, those of Prorotodactylus, showing a digitigrade posture and similar digits to Lagerpeton. It may have been saltatory, jumping and running through its environment - as indicated not only by its legs and activity, but also by the incline of its neural spines on the its vertebrae, not seen in other archosaurs. It has a very small pelvic girdle, allowing for an increase in force during hip extension in jumping. It also had very narrow, essentially two-toed feet, further allowing for hopping by the animal. It would have been a very fast, active animal in its environment, showing a distinct and unique niche occupied by early derived relatives of dinosaurs during the Late Triassic.
Source:
https://en.wikipedia.org/wiki/Lagerpeton
Shout out goes to @chemoon13!
