The dinosaur in the cupboard under the stairs

The mystery surrounding dinosaur footprints on a cave ceiling in Central Queensland has been solved after more than a half a century. University of Queensland palaeontologist Dr Anthony Romilio discovered pieces to a decades-old puzzle in an unusual place – a cupboard under the stairs of a suburban Sydney home. The research has been published in … Read more The dinosaur in the cupboard under the stairs

The ‘firewalkers’ of Karoo: Dinosaurs and other animals left tracks in a ‘land of fire’

In southern Africa, dinosaurs and synapsids, a group of animals that includes mammals and their closest fossil relatives, survived in a “land of fire” at the start of an Early Jurassic mass extinction, according to a study published January 29, 2020 in the open-access journal PLOS ONE by Emese M. Bordy of the University of Cape Town … Read more The ‘firewalkers’ of Karoo: Dinosaurs and other animals left tracks in a ‘land of fire’

Bone analysis suggests small T. rexes were not a separate genus; they were kids

Without a doubt, Tyrannosaurus rex is the most famous dinosaur in the world. The 40-foot-long predator with bone crushing teeth inside a five-foot long head are the stuff of legend. Now, a look within the bones of two mid-sized, immature T. rex allow scientists to learn about the tyrant king’s terrible teens as well. In the early … Read more Bone analysis suggests small T. rexes were not a separate genus; they were kids

When penguins ruled after dinosaurs died

What waddled on land but swam supremely in subtropical seas more than 60 million years ago, after the dinosaurs were wiped out on sea and land? Fossil records show giant human-sized penguins flew through Southern Hemisphere waters – along side smaller forms, similar in size to some species that live in Antarctica today. Now the … Read more When penguins ruled after dinosaurs died

Dull teeth, long skulls, specialized bites evolved in unrelated plant-eating dinosaurs

Herbivorous dinosaurs evolved many times during the 180 million-year Mesozoic era, and while they didn’t all evolve to chew, swallow, and digest their food in the same way, a few specific strategies appeared time and time again. An investigation of the skulls of 160 non-avian dinosaurs revealed the evolution of common traits in the skulls … Read more Dull teeth, long skulls, specialized bites evolved in unrelated plant-eating dinosaurs

Adelphi, OHIO researchers determine dinosaur replaced teeth as fast as sharks

A meat-eating dinosaur species (Majungasaurus) that lived in Madagascar some 70 million years ago replaced all its teeth every couple of months or so, as reported in a new study published today in the open-access journal PLOS ONE, surprising even the researchers. In fact, Majungasaurus grew new teeth roughly two to thirteen times faster than those of other … Read more Adelphi, OHIO researchers determine dinosaur replaced teeth as fast as sharks

Discriminating diets of meat-eating dinosaurs

A big problem with dinosaurs is that there seem to be too many meat-eaters. From studies of modern animals, there is a feeding pyramid, with plants at the bottom, then plant-eaters, and then meat-eaters at the top. A new study by scientists at the University of Bristol’s School of Earth Sciences, published in the journal Palaeontology, … Read more Discriminating diets of meat-eating dinosaurs

Meet Siamraptor suwati, a new species of giant predatory dinosaur from Thailand

Fossils discovered in Thailand represent a new genus and species of predatory dinosaur, according to a study released October 9, 2019 in the open-access journal PLOS ONE by Duangsuda Chokchaloemwong of Nakhon Ratchasima Rajabhat University, Thailand and colleagues. Carcharodontosaurs were a widespread and successful group of large predatory dinosaurs during the Jurassic and Cretaceous Periods and were … Read more Meet Siamraptor suwati, a new species of giant predatory dinosaur from Thailand

New Australian pterosaur may have survived the longest

The discovery of a previously unknown species of pterosaur, which may have persisted as late as the Turonian period (90–93 million years ago), is reported in Scientific Reports this week. The fossil, which includes parts of the skull and five vertebrae and wing elements, is the most complete pterosaur specimen ever found in Australia. The findings suggest it … Read more New Australian pterosaur may have survived the longest

Dust from a giant asteroid crash caused an ancient ice age

About 466 million years ago, long before the age of the dinosaurs, the Earth froze. The seas began to ice over at the Earth’s poles, and the new range of temperatures around the planet set the stage for a boom of new species evolving. The cause of this ice age was a mystery, until now: … Read more Dust from a giant asteroid crash caused an ancient ice age