Over evolutionary history, many different species of animals have evolved very large body sizes. The general consensus has been that an animal grows to...
Patagorhynchus pascuali represents the first Cretaceous toothed monotreme from the supercontinent Gondwana.
Life reconstruction of Patagorhynchus pascuali....
Using X-ray computed tomography scan data, paleontologists reconstructed the braincase endocasts of Baryonyx walkeri and Ceratosuchops inferodios from...
A new genus and species of giant colossosaurian titanosaur has been identified from fossils found in Patagonia, Argentina.
An artist’s reconstruction...
Paleontologists have described a previously unrecognized genus and species of hadrosaurid dinosaur from a partial bone found in Texas, the United States.
Life...
Paleontologists in India have documented 92 clutches containing a total of 256 fossilized eggs of titanosaur sauropods.
Field photograph of titanosaur...
Paleontologists have examined five specimens with differently preserved feathers from Sapeornis chaoyangensis, an early bird species that lived during...
Cratonavis zhui, a new species of pygostylian bird from the Early Cretaceous Jehol Biota of China, had a unique combination of a dinosaurian skull with...
A new genus and species of fossil lizard has been described from two fossilized specimens found in eastern Inner Mongolia, China.
Close-up of the holotype...
Most birds today can lift the upper beak independently of the brain case, enabled by a series of mobile joints and bending zones in the skull. The computed...
A new species of confuciusornithid bird being named Confuciusornis shifan has been identified from a nearly complete skeleton found in northeastern China.
Life...
Paleontologists have identified a new species of the extinct frog genus Baurubatrachus from fossils found in the state of São Paulo, Brazil.
Life reconstruction...
In the Monte Alto region in the Brazilian state of São Paulo, paleontologists have unearthed the fossilized remains of a new crocodyliform species that...
A new genus and species of enantiornithine bird has been described from a partial right humerus found in southern Patagonia, Argentina.
An artist’s impression...
Paleontologists have found the fossilized remains of a small mammal foot preserved inside the body cavity of the holotype specimen of Microraptor zhaoianus,...
A new genus and species of titanosauriform sauropod dinosaur with an unusual tail has been identified from a partial skeleton found in northeastern China.
An...
Australian Museum’s Professor Tim Flannery and colleagues argue that the ancestors of Theria (placental and marsupial mammals) evolved in the supercontinent...
Paleontologists have identified a new genus and species of titanosaurian dinosaur from the fossilized remains found in the Brazilian state of Minas Gerais.
Life...
Paleontologists have long debated why groups such as non-avian dinosaurs became extinct whereas mammals and other lineages survived the end-Cretaceous...
