Indications for dinosaur diet are found in their fantasy dental chemistry

What you eat is you, it shows – even if your last meal was 150 million years ago.

Although this grub itself can last for a long time, the record of dinosaurs’ favorite foods has been removed in their ancient tooth enamel during the last eun. When researchers at the University of Texas in Austin took a closer look, they discovered that some dinosaurs were understanding, and different parts of the plants with different species have been preferred.

Toothache contains calcium asotypes that reflect the range of food while eating dinosaurs. Different types of plants have different chemical signatures, and unprecedented parts of the trees – from buds to bark – also have individual signatures. According to the main author of this study, Liam Norris, helps to explain the results on how many creatures live together in the same area at the same time.

“The environmental system I have studied has been a long time since it has all the rest of her herbs,” said Noris, a recent doctoral graduate of the Jackson School of GeoSins of the UT. “The idea is that they were eating all different things, and now we have found evidence.”

The results have been published in Pelogeography, Pelvicamytology, Pelvicology.

Nuris conducted four dinosaurs species and a crookyliform, both herbs and meats, who wandered in the western United States during the late jarask. Plant eating is long -neck chemicals. Short armed campuses; And the trunk legs with diplodox. The meat eating bipodel is alovascus and relatively small, crocodiles are utteroviruschos. The bones and teeth of these ancient creatures were found in the carnagi quarry deposit in the northeastern Utah, which is thought to have formed during the six months to a few thousand years during the extreme drought.

“We were very fortunate to have been able to study the fiancée of dinosaur and was rapidly safe in the same reservoir,” said Rowan Martandel, an associate professor at the Jackson School Department of Earth and Sciences. “The Jurassic Tomb saved a unique pelvicological mini and these skeletons are beautifully shown in the dinosaur national monument.”

Norris, who now works at the Texas Science and Natural History Museum, studied dental dental from 17 individual animals in these five species. These samples were lended by the Utah Field House of Natural History State Park Museum or received in the field of dinosaur national monument. He shaved his dust, which he returned to Jackson School for calcium isotop analysis. Jackson School Professor John Laster and Radiogenic Osotop Laboratory Manager Aaron Satkoski, both co -authors of the paper, helped analyze and interpret the figures.

Earlier, scientists believed that according to the height, the trees resided on different levels of the umbrella of the trees and lived together with large herbs dinosaur. However, Norris’s research shows that the height of the plants was not the only factor that pushes their dietary distinctions – rather than that they were certain parts of the plants.

For example, Norris found that Campusarus was a very sensible eaten, which preferred more nutritional parts of plants such as softening, plants and buds. Camarosurus mostly consumed the confusion, which had the priority of wooden plant tissues. Diplodox consumed a more mixed diet, which included soft francs and hercetal plants on the ground, as well as hard parts of the plants.

Norris said, “This difference in the diet means what is visible from the shape of these animals: different heights, different snack shapes. Then, we bring this geo -chemical data, which is a very solid piece of proof to add to the vessel.”

This research also provides interesting food for a theory of a theory of long -neck dinosaurs, which contains elastic necks that can be used to reach many areas of the plants so that their energy can be spent to transmit the rest of their bodies. This research, which shows that dinosaurs eat from different levels of the umbrella of the trees, eliminate this thinking.

In this study, meat -eaters – alovascus and uteritarnosochos did an overlap in the values of calcium asotype, which may mean that they had eaten some of the same things. However, the results also showed that Uttorovanosuchos was more likely to eat fish, while Alsovor ate herbs mainly ate herb dinosaur – possibly included three other dinosaurs species mentioned in the study.

Supporting a lot of large dinosaurs with such specific dietary posts of this ancient ecosystem helps paint the production of plants and plants at the moment.

“It’s really even more evidence that this environmental system was just as wonderful as we thought,” said Noris.

Henry Freak of Colorado College also jointly authored the study.