In egg-laying amniotes (reptiles, birds and monotremes), the developing embryo is tethered to a number of the extraembryonic membranes that deliver oxygen...
Paleontologists have unearthed a well-preserved cervical vertebra of a medium-sized abelisaurid ceratosaur in the Bahariya Oasis of the Western Desert...
A new genus and species of therizinosaurid dinosaur that lived during the Cretaceous period has been identified from the fossilized remains unearthed on...
Paleontologists have described a new species of large-bodied megaraptoran dinosaur from fossilized remains found in Patagonia, Argentina.
Life reconstruction...
The top predator of the Jurassic and Cretaceous landscapes was usually a species of carnivorous dinosaur. These predators walked on two legs, had powerful...
New research confirms the existence of intraspecific fighting in Triceratops horridus, a species of horned dinosaur that lived in North America some 69...
By analyzing the density of bones of several spinosaurid dinosaurs and comparing them to other animals like penguins, hippos, and alligators, Field Museum...
A new genus and species of thyreophoran dinosaur that lived during the Early Jurassic epoch has been identified from a partial skeleton with cranial and...
Paleontologists have identified a new species of softshell turtle from a partial carapace found in North Dakota, the United States.
Hutchemys walkerorum....
Bashanosaurus primitivus is the earliest record of Stegosauria in Asia and represents one of the earliest records of this dinosaur group from anywhere...
An analysis of over three dozen specimens of Tyrannosaurus rex finds that they exhibit such a remarkable degree of proportional variations that the pattern...
A new genus and species of abelisaurid theropod has been identified from a partially complete skull found in northwestern Argentina.
An artist’s reconstruction...
A new genus and species of dinosaur being named Iberospinus natarioi has been discovered by Dr. Octávio Mateus and Dr. Darío Estraviz-López from Portugal’s...
An international team of paleontologists from Australia, Canada and Italy has documented more than 100 footprints of hadrosaurid and tyrannosaurid dinosaurs...
Paleontologists have unearthed the fossilized skeletal remains of Confractosuchus sauroktonos, a previously unknown genus and species of crocodyliform,...
The pulmonary disease infecting this diplodocine dinosaur, nicknamed ‘Dolly,’ would not been externally evident, but the probable pneumonia-like outward...
Abditosaurus kuehnei, a species of titanosaurian sauropod dinosaur from the Cretaceous of Spain, is an immigrant lineage, distinct from some of the island...
Paleontologists have discovered the footprints of large sauropodomorph dinosaurs on the shoreline near Penarth in south Wales, the United Kingdom.
An individual...
