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Ancient armoured animal leads to rethink of reptile evolutionary tree

Fossilised remains of a 250-million-year-old animal are leading to a new understanding of how reptiles evolved in the wake of Earth’s largest mass extinction

Andrzej wolniewicz

Ancient human-size sea lizard rewrites history of early armored marine reptiles

Ancient human-size sea lizard rewrites history of early armored marine reptiles
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Andrzej wolniewiczHefei university of technologyAcademy of sciencesHefei universityPolish academyLive science

Scientists Uncover More Secrets of Elusive Extinct Marine Reptile

New technology has allowed paleontologists to identify five more fossils of the rare Besanosaurus hidden right in their own museums. The skull of the type specimen of Besanosaurus leptorhynchus is characterized by extreme longirostry (i.e., thin elongate snout), and equipped with tiny pointed teeth, perfect for catching small fish and extinct cousins of squids with rapid snapping moves of the head and jaws. (Credit: Gabriele Bindellini and Marco Auditore, © Museo di Storia Naturale di Milano) (CN) In a new international study, paleontologists have taken another look at their fossils of the ancient reptile, the Besanosaurus, and found exciting new information about the elusive species and how it lived in the Mid-Triassic period.

Marco auditoreAndrzej wolniewiczGabriele bindelliniTorsten scheyerFeiko miedemaCristiano dal sassoEnvironmental sciencesEarth science department of milan universityNatural history museum of milanStoria naturaleNatural history museumEarth science departmentMonte san giorgioகிறிஸ்டியானோ பருப்பு சஸ்ஸொசுற்றுச்சூழல் அறிவியல்இயற்கை வரலாறு அருங்காட்சியகம் ஆஃப் மிலன்

Slender-snouted Besanosaurus was an 8 m long marine snapper

E-Mail IMAGE: The skull of the type specimen of Besanosaurus leptorhynchus is characterized by extreme longirostry (i.e., thin elongate snout), and equipped with tiny pointed teeth, perfect for catching small fish and. view more Credit: Gabriele Bindellini and Marco Auditore, © Museo di Storia Naturale di Milano. Middle Triassic ichthyosaurs are rare, and mostly small in size. The new Besanosaurus specimens described in the peer-reviewed journal PeerJ - the Journal of Life and Environmental Sciences - by Italian, Swiss, Dutch and Polish paleontologists provide new information on the anatomy of this fish-like ancient reptile, revealing its diet and exceptionally large adult size: up to 8 meters, a real record among all marine predators of this geological epoch. In fact,

United kingdomSan diegoUnited statesItaly generalMarco auditoreGuido alberto rossiAlessandro crastiGabriele bindelliniGiorgio teruzziFeiko miedemaFondazione ospedale maggioreAndrzej wolniewiczCorso veneziaFabio fogliazzaArdito desioTorsten scheyer