Ogrima Mukherjee

The Yutyrannus huali was a theropod Tyrannosauroid that lived during the Early Cretaceous period 145 million years ago. The generic name Yutayrannus means 'feathered tyrant' in Latin and huali means 'beautiful' in Mandarin; the complete name translates to 'beautiful feathered tyrant.'

It was named by Xu Xing in 2012. The discovery of fossils was in the Liaoning Province of China which was formed around 140 million years ago.

Paleontologists discovered that the dinosaur had display feathers.

The structures were an early form of feathers that could form a downy cover on the body of the dinosaur to keep it warm or hold importance during mating displays. It is currently the largest dinosaur to provide direct evidence of feathers on dinosaurs.

While tyrannosaurs can be found in warm and cold climates, this genus lived in cold areas. It was a carnivore and fed on small animals and other dinosaurs like sauropods.

If you like reading about Yutyrannus, also check out interesting facts about dinosaurs like Orodromeus and Puertasaurus.

Stegoceras validum lived during the Late Cretaceous period, 75 million years ago. This dinosaur fossil was found in Canada and New Mexico.

The description of their fossils showed that they were dome-headed. They had knobs and bumps on their head and protruding ridges at the back of their head.

This dome-headed dinosaur was a herbivore with small teeth placed in rows and it fed on plants, fruits, seeds, and insects. It was a bipedal dinosaur and when it comes to its classification, it was part of the Pachycephalosauridae family and the Stegoceras genus.

If you like reading about the Stegoceras, also check out these interesting facts about the Monoclonius and the Shunosaurus!

The Triassic dinosaur, Melanorosaurus (Haughton, 1924) is also known as the 'black mountain lizard'. The dinosaur fossil was found on the slope of Thaba 'Nyama in South Africa; the name of the mountain means 'black mountain'. This dinosaur genus lived during the Triassic-Jurassic period.

Its classification description is Dinosauria, Saurischia, Sauropodomorph, Prosauropoda, Anchisauria, and Melanorosauridae genus. The dinosaur was quadrupedal and had a heavy and large body with short stout limbs, an elongated flexible tail, and a triangular skull. It reproduced by laying eggs.

If you like reading about the Melanorosaurus dinosaur, also check out interesting dinosaur facts about Dryosaurus and Gasparinisaura.

The Pachysaurus, also known commonly by the name Pachycephalosaurus, was a bipedal herbivorous dinosaur that lived in the Late Cretaceous period, 65 million years ago, in western North America. Its fossils have been found in Montana, South Dakota, Wyoming, and Alberta. The fossils have currently been donated to a museum for display.

The name Pachycephalosaurus is Greek for 'thick-headed lizard'. The animal has a domed skull that is 9-10 in (22-25 cm) thick and is lined with spiky knobs.

It had two feet and two hands. The hind limbs were longer and stronger than the front limbs. It reproduced by laying eggs.

If you liked reading about the Pachycephalosaurus, also see interesting facts about Rahonavis and Zigongosaurus.