<p>Palaeontologists identified a new species of dinosaur after a specimen from about 73 million years ago was found in northern Mexico, the country's National Institute of Anthropology and History (INAH) said Thursday.</p>.<p>The scientists said the conditions in which the dino was found explain its preservation.</p>.<p>"About 72 or 73 million years ago, a huge herbivore dinosaur died in what must have been a body of water full of sediment, so that its body was quickly covered by the earth and could be preserved through the ages," the institute said in a statement.</p>.<p>The animal is called Tlatolophus galorum. Its tail was discovered first, in the General Cepeda area of the northern state of Coahuila in 2013.</p>.<p>As excavations continued, scientists eventually discovered 80 percent of its skull, its 1.32-meter crest and bones such as its femur and shoulder, which allowed researchers to finally realize this year that they had a new species of dinosaur on their hands, the INAH said.</p>.<p>"We know that they had ears with the capacity of hearing low-frequency sounds, so they must have been peaceful but talkative dinosaurs," the statement said.</p>.<p>Palaeontologist also believe that the dinosaurs "emitted strong sounds to scare away predators or for reproductive purposes."</p>.<p>The discovery is still under investigation, but research about the ancient reptile has already been published in the scientific journal Cretaceous Research, according to INAH.</p>.<p>"It is an exceptional case in Mexican palaeontology," the INAH said. "Highly favorable events had to occur millions of years ago, when Coahuila was a tropical region, for it to be conserved in the conditions it was found in."</p>.<p>The name Tlatolophus is derived from the indigenous Nahuatl language word tlahtolli -- which means word or statement -- and the Greek word lophus, meaning crest.</p>.<p>The animals crest's shape looks like what the INAH said is "a symbol used by Mesoamerican people in ancient manuscripts to represent the action of communication and knowledge itself."</p>
<p>Palaeontologists identified a new species of dinosaur after a specimen from about 73 million years ago was found in northern Mexico, the country's National Institute of Anthropology and History (INAH) said Thursday.</p>.<p>The scientists said the conditions in which the dino was found explain its preservation.</p>.<p>"About 72 or 73 million years ago, a huge herbivore dinosaur died in what must have been a body of water full of sediment, so that its body was quickly covered by the earth and could be preserved through the ages," the institute said in a statement.</p>.<p>The animal is called Tlatolophus galorum. Its tail was discovered first, in the General Cepeda area of the northern state of Coahuila in 2013.</p>.<p>As excavations continued, scientists eventually discovered 80 percent of its skull, its 1.32-meter crest and bones such as its femur and shoulder, which allowed researchers to finally realize this year that they had a new species of dinosaur on their hands, the INAH said.</p>.<p>"We know that they had ears with the capacity of hearing low-frequency sounds, so they must have been peaceful but talkative dinosaurs," the statement said.</p>.<p>Palaeontologist also believe that the dinosaurs "emitted strong sounds to scare away predators or for reproductive purposes."</p>.<p>The discovery is still under investigation, but research about the ancient reptile has already been published in the scientific journal Cretaceous Research, according to INAH.</p>.<p>"It is an exceptional case in Mexican palaeontology," the INAH said. "Highly favorable events had to occur millions of years ago, when Coahuila was a tropical region, for it to be conserved in the conditions it was found in."</p>.<p>The name Tlatolophus is derived from the indigenous Nahuatl language word tlahtolli -- which means word or statement -- and the Greek word lophus, meaning crest.</p>.<p>The animals crest's shape looks like what the INAH said is "a symbol used by Mesoamerican people in ancient manuscripts to represent the action of communication and knowledge itself."</p>