Paleontogly

Meet Mystriosaurus laurillardi, Marine Crocodile from Jurassic Period

An incomplete crocodile skull found near the city of Altdorf in Bavaria, southern Germany, in the 1770s has been recognized as Mystriosaurus laurillardi, which lived in tropical waters during the Jurassic period. Life reconstruction of Mystriosaurus laurillardi. Image credit: Julia Beier. “Mystriosaurus laurillardi is one of the first marine crocodile …

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Extinct Kangaroo Had Feeding Habits Similar to Giant Panda

An analysis of the skull biomechanics of Simosthenurus occidentalis, a species of giant short-faced kangaroo that persisted until about 42,000 years ago, indicates that the extinct animal had a capacity for high-performance crushing of foods, suggesting feeding behaviors more similar to the modern-day giant panda (Ailuropoda melanoleuca) than modern-day kangaroos. …

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New Pterosaur Species Identified in Canada

Cretaceous pterosaur remains discovered in the Dinosaur Park Formation in Alberta have been identified as a new genus and species, Cryodrakon boreas. Cryodrakon boreas. Image credit: David Maas. Cryodrakon boreas lived about 77 million years ago and had a wingspan of 33 feet (10 m). The flying reptile belongs to …

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New Duck-Billed Dinosaur Unveiled: Kamuysaurus japonicus

A new genus and species of hadrosaurid dinosaur (duck-billed) has been identified from bones discovered six years ago in Japan. Life reconstruction of Kamuysaurus japonicus with a carcass of a mosasaur (Phosphorosaurus ponpetelegans), a sea turtle (Mesodermochelys undulates), and shells of ammonoids (Patagiosites compressus and Gaudryceras hobetsense) and bivalves (Nannonavis …

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Tyrannosaurus rex Had ‘Thermostat’ in Its Head

Tyrannosaurus rex, a species of carnivorous dinosaur that lived about 68 million years ago, had an internal thermostat in its head, according to a study published in the journal Anatomical Record. A graphic thermal image of a T. rex with its dorsotemporal fenestra glowing on the skull. Image credit: Brian …

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Jurassic Pterosaurs Were Filter-Feeders, Study Says

A new study led by Uppsala University researchers provides the first direct evidence of filter feeding in Jurassic pterosaurs and shows that they had a similar diet to the Chilean flamingo (Phoenicopterus chilensis). An artist’s impression of the Cretaceous pterosaur Pterodaustro. Image credit: Nobu Tamura, spinops.blogspot.com / CC BY 3.0. …

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Triassic-Era Mammal Relative Had Saber Teeth

A new species of cynodont has been identified from a fossilized skull found in the San Juan province, Argentina. An artist’s impression of Pseudotherium argentinus. Image credit: Agencia CTyS-UNLaM. The extinct mammal relative, named Pseudotherium argentinus, lived during the Triassic period, about 231 million years ago. “Pseudotherium argentinus lived in …

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Meet Adratiklit boulahfa, World’s Earliest Known Stegosaur

Paleontologists in Morocco have found fossil fragments from a new genus and species of stegosaur that walked the Earth about 168 million years ago (Jurassic period). Adratiklit boulahfa is closely related to the European stegosaurs Dacentrurus and Miragaia (seen here). Image credit: Nobu Tamura, spinops.blogspot.com / CC BY 3.0. Stegosaurs …

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