#trex

#trex

Scientists Proposed to Split Tyrannosaurus rex into Three Distinct SpeciesBecause of the variations on thighbones and teeth among T. rex fossils, a group of three researchers proposed to split the tyrannosaurus genus into three species. Alongside the lone T. rex (which means "tyrant lizard king"), the two new species proposed are T. imperator ("tyrant lizard emperor) and T. regina ("tyrant lizard queen"). Gregory Paul, the lead author of the study, knew that his conclusions were controversial, and he was right.Other paleontologists disagreed with Paul's conclusions, with one stating that the variations that the study found were "very minor" and do not indicate "meaningful biological separation." Another paleontologist argued that the variations in the thighbones and teeth are not enough; differences should be present in most (if not all) of the body parts — especially in the head.(Image Credit: REUTERS/ Philippe Wojazer)#Paleontology #Dinosaurs #Trex #Timperator #Tregina

Move over T-Rex! Guemesia ochoai is a Newly Discovered Dinosaur with Even Tinier ArmsThe T-rex is known as one of the most ferocious predators to walk our planet. But the T-rex is not only known for that; it is also known for its unusually tiny arms. However, T-rex arms are not the shortest. A new dinosaur species was recently discovered in Argentina. This dinosaur had even tinier arms than T-rex! This dinosaur, Guemesia ochoai, was an abelisaurid species from a group of carnivores said to have roamed in Africa, South America, and India. Also similar to the T-rex was this dinosaur's ferocity; it may be armless, but it is in no way harmless. Despite their smaller stature, the abelisaurs can take down bigger titanosaurs.These dinosaurs might be a pain in the butt to wrestle with, but if there's a type of wrestling where they cannot participate, it's arm wrestling.(Image Credit: Fred Wierum/ Wikimedia Commons)#Paleontology #Dinosaurs #Trex #TinyArms