Monday , June 27 2022

Gordodon kraineri: The first vegetarian


A fossil found in 300-million-year-old rocks in southern New Mexico was found to be the oldest example of a crawling reptile specimen.

The New Mexico Museum of Natural History announced this week and said that the unique structure of the teeth of the skull, jaws and reptilian reptiles is a herbivore, and that such special plants have not been found in reptiles before. More than 200 million years old.

During a university trip to the University of Oklahoma geology class in 2013, fossil bones were discovered by Ethan Schuth near Alamogordo.

It might look like a dinosaur. But it actually belongs to a much older animal species known as a pelycosaur – a class more closely related to mammals than dinosaurs. In particular, this is the oldest known vegetarian of its kind.

The bones were part of a perfectly preserved but incomplete skeleton. The field crew spent one year collecting bones from the area and spent more time collecting the hard sandstone surrounding the fossils for research.

Palaeontology curator Spencer Lucas and his team found that the museum was about 300 million years old, meaning the Permian Period lasted more than 50 million years before the creeping reptile or the origin of the dinosaurs.

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Lucas and research fellow, Matt Celeskey, described the skeleton as a new genus and species, which they call the Gordodon kraineri. Since Gordodon has large fangs at the ends of his jaws, the Spanish word is derived from gordo or grease and the Greek word odon or tooth.

Gordodon was about 1.5 meters long and weighed about 34 kilograms. It is believed to be a selective feeder on high nutrient plants due to the improved structure of the skull, jaw and teeth.

And that makes him the oldest vegeterian tetrapod in the fossil record. Previously, the first was thought to have emerged during the Triassic period 205 million years ago. This discovery pushes vegetarianism back and forth for another 90 million years.

Bir There is a large diastema in the jaws of the mouth-toothy teeth-like teeth on the back of his mouth, bir says Matt Celeskey, a paleontologist. Uz Today we see a lot of this in mammals such as rodents, rabbits, horses. [and] goats. "

Gordodon was almost a rabbit-like thing at the tip of his head, just in front of the mouth, two large chisel-like teeth on the jaws with smaller teeth.

Experts in the museum say that other early herbivorous reptiles are not picky and they choose any plant they are facing. But Gordodon says they have some of the same specialties found in modern animals, such as goats and deer.

He also had a large, spiny sail structure on his back. The cause is unknown.

The genre name honored Karl Krainer, an Austrian geologist who was informed about the Permian period in New Mexico.

. Gordodon rewrites books based on our understanding of the evolution of these particular herbivores, based on some 100 million years ago, Lucas said Lucas.

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