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Home https://server7.kproxy.com/servlet/redirect.srv/sruj/smyrwpoii/p2/ Science https://server7.kproxy.com/servlet/redirect.srv/sruj/smyrwpoii/p2/ Giant predatory carnivores terrorized Triassic dinosaurs 210 million years ago

Giant predatory carnivores terrorized Triassic dinosaurs 210 million years ago



  Two Rauzuchi Fighting

Reconstruction of an artist by two Rauzuchi fighting over a dried corpse of a mammalian relative in the Triassic of South Africa. In the background, dinosaurs and mammal-like reptiles form other parts of the ecosystem. Credit: Victor Radermacher

Rawisuchi fed on vegetarian dinosaurs according to Wits student Rick Tolchard.

Giant, step-like predatory animals living during the Triassic period in South Africa, pursued by early dinosaurs and mammalian relatives 210 million years ago. According to Wits Masters predators Rick Tolchard, these predators provide us with evidence of how at least two species of predators hunted them for these early herbivorous dinosaurs and their mammalian relatives at the time. vegetarian dinosaurs 210 million years ago. It is incredible to follow the clues left in fossilized teeth, jaws, limbs and other fossils to help us tell the ancient life story of South Africa, "says Tolchard.

The fossils examined by Tolchard include teeth, jaw pieces, hind limbs, and body armor, all of which can be described as parts of raisuchi.

  Rick Tolchard

Rick Tolchard studying the rahuizhu at the Geological Survey in Namibia. Credit: Helke Mocke

The Rauisuchians are closely related to the crocodiles as we know them today. They had a variety of body shapes and sizes throughout the Triassic period. The specimens described in this study include some of the largest carnivores in this group, probably up to 10 meters in length, with huge skulls full of jagged, arched teeth.

A study published online last week in the journal of the African Earth Sciences shows that the Rauwis were one of the newest surviving members of their group and that when they were alive they flourished close to the Antarctic Circle – the theoretical boundary for their physiology. [19659011] Rawisus teeth "width =" 777 "height =" 583 "srcset =" https://scitechdaily.com/images/Rauisuchian-Teeth-777×583.jpg 777w, https://scitechdaily.com/images/Rauisuchian- Teeth-300×225.jpg 300w, https://scitechdaily.com/images/Rauisuchian-Teeth-768×576.jpg 768w, https://scitechdaily.com/images/Rauisuchian-Teeth.jpg 1440w "sizes =" (max-width : 777px) 100vw, 777px "/>

An example of Rausus teeth in the Wits collections. Credit: Wits University

" During the Triassic period, raususia were widespread and their fossils are known from all continents, with the exception of all continents. Antarctica, "adds Tolchard." They disappeared about 200 million years ago, paving the way for dinosaurs to become home initiating large land animals. "

" Rick's research shows the value of re-examining old specimens and now we finally know what the plunder of all these plant-eating dinosaurs was! "says Professor Jonah Choniere, Rick's advisor and professor of comparative paleobiology at the Wits Institute for Evolutionary Studies.

Tolchard studies fossils from collections based at the University of the Witwatersran, the Isico South African Museum and the Bloemfontein National Museum. He joins research from an international team of researchers from the US, Argentina and the United Kingdom.

Reference: "Rauisuchian" Material from the Lower Eliot Formation of South Africa and Lesotho: Implications for Late Triassic Biogeography and Biostratigraphy. "By Frederick Tolchard, Sterling J. Nesbitt, Julia B. Desojo, Pia Viglietti, Richard J. Butler and Jonah N. Chonier, Aug. 27, 2019, [19459011г] Journal of African Earth Sciences .
doi: 10.1016 /j.jafrearsci.2019.103610 records19659017Sense (function (d, s, id) {
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