Sauropod dinosaurs like Apatosaurus replaced their ‘simple teeth’ faster than more complex ones
Paleontologists have found that sauropod dinosaurs, the largest animals living on Earth, have drastically replaced their teeth with other herbivores, according to a new study.
Researchers at the Natural History Museum at the Dinosaur Institute of Los Angeles County quickly changed their “simple teeth” and replaced the more complex teeth at a slower rate.
Unlike carnivores or ornithischians, which had complex teeth similar to modern herbivores, sauropods had extremely simple teeth.
Herbivores usually have complex teeth that can grind fibrous leaves or grass, but sauropods usually had simple teeth, which were quickly replaced and allowed them to eat a variety of different plants, unlike other herbivores, living or extinct.
Paleontologists found that sauropod dinosaurs replaced their teeth drastically differently than other herbivores
Dinosaurs (meaning “terrible lizard” in Greek) such as Apatosaurus and Diplodocus had “incredibly fast replacement rates and simple teeth,” which experts believe may have eaten different foods than other sauropods.
Conversely, dinosaurs like Brachiosaurus, which belongs to the macronarian group of sauropods, had significantly more complex teeth.
For all known animals, more complex teeth are usually replaced more quickly than simple ones.
The ‘pin-like’ teeth were quickly exchanged, completely unique to all known herbivores known.
They replaced ‘simple teeth’ quickly, while complex teeth were replaced slowly. The ‘pin-like’ teeth were quickly exchanged, completely unique to all known known herbivores
Dinosaurs like Apatosaurus and Diplodocus had “incredibly fast replacement rates and simple teeth,” which experts believe may have eaten different foods than other sauropods
Having simple teeth would have made things easier for the dinosaurs and their long necks, as they weigh less and can lighten the skull, putting less strain on the neck.
“In almost every other animal we look at, the complexity of a tooth has to do with the animal’s diet,” said the study’s lead author, Dr. Keegan Melstrom, in a statement. pronunciation.
‘Carnivores have simple teeth, herbivores have complex teeth, often with distinct ridges, combs and cusps for processing plant material.
“But sauropods break this incredibly consistent pattern. Instead, these dinosaurs couple complexity with tooth replacement speed, replacing simple teeth every few weeks!’
Unlike carnivores or ornithischians (pictured), which had complex teeth similar to modern herbivores, sauropods had extremely simple teeth
The scientists used CT and microCT scanning of existing dinosaur teeth and created 3D models of specimens to come up with their findings.
In doing so, they broke down dinosaur teeth in numbers and complexity between the three groups: carnivorous theropods, herbivorous ornithischians and sauropods.
By having a tooth replacement pattern unlike any known herbivores, living or dead, it would allow sauropods to eat plant foods that other herbivores and non-dinosaur herbivores skip.
“Over and over again, the fossil record shows us that there is no single solution to evolutionary problems,” added Dr. Melstrom.
By having a tooth replacement pattern unlike any known herbivores, living or dead, it would allow sauropods to eat plant foods that other herbivores and non-dinosaur herbivores skip
“For sauropods, when it comes to eating tough plants, the simplest solution was the best.” An animal’s teeth can provide insight into their diet and lifestyle.
The simple banana-sized teeth of T. rex, for example, have been extensively studied in the past.
They have revealed that they were able to deliver bone-piercing bites from the age of 13, even before their adult teeth came through.
A study published in August also found that the “king of the dinosaurs” had nerve sensors in the tips of its jaws that could recognize the different parts of its prey and eat them differently depending on the situation.
“The diet of extinct dinosaurs was incredibly varied, from tiny carnivores to huge herbivores,” said Dr. Melstrom.
‘Our research sheds light on the range of adaptations that allowed so many herbivores to coexist.’
The research was recently published in the scientific journal BMC Ecology and Evolution.
REDUCE DINOSAURS: HOW A CITY SIZE ASTEROID DESTROYS 75 PERCENT OF ALL ANIMAL AND PLANT SPECIES
About 66 million years ago, non-avian dinosaurs were wiped out, wiping out more than half of the world’s species.
This mass extinction paved the way for the rise of mammals and the appearance of humans.
The Chicxulub asteroid is often cited as a possible cause of the Cretaceous-Paleogene extinction.
The asteroid slammed into a shallow sea in what is now the Gulf of Mexico.
The collision released a huge cloud of dust and soot that caused global climate change and wiped out 75 percent of all animal and plant species.
Researchers argue that the soot needed for such a global catastrophe could only come from a direct impact on rocks in shallow water around Mexico, which are particularly rich in hydrocarbons.
Within 10 hours of the impact, a massive tsunami ripped through the Gulf Coast, experts believe.
About 66 million years ago, non-avian dinosaurs were wiped out, wiping out more than half of the world’s species. The Chicxulub asteroid is often cited as a possible cause of the Cretaceous-Paleogene extinction (stock image)
This caused earthquakes and landslides in areas as far as Argentina.
While investigating the event, researchers found small particles of rock and other debris that were shot into the air when the asteroid crashed.
These tiny particles, called spherules, covered the planet with a thick layer of soot.
Experts explain that the loss of light from the sun caused a complete collapse of the water system.
This is because the phytoplankton base of almost all aquatic food chains would have been eliminated.
It is believed that the more than 180 million years of evolution that brought the world to the Cretaceous Period were destroyed in less than the lifespan of a Tyrannosaurus rex, which is about 20 to 30 years.