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Newly named mesosaurs

Name	Novelty	Status	Authors	Age	Unit	Location	Notes	Images
Brazilosaurus Brazilosaurus Brazilosaurus is an extinct genus of mesosaur which lived during the early Permian of what is now Brazil. It is known from a skeleton recovered from the Assistencia Member of the Irati Formation . It was named by T. Shikama and H...	Gen. et sp.	Valid	Shikama Ozaki	Artinskian	Irati Formation Irati Formation Irati Formation is the name of a geological formation of Brazil.It has previously been dated as Upper Permian using palynomorphs but is now dated as Lower Permian using zircon ages obtained from bentonite layers...		A mesosaur Mesosaur Mesosaurs were a group of small aquatic reptiles that lived during the early Permian period, roughly 299 to 270 million years ago. Mesosaurs were the first aquatic reptiles, having apparently returned to an aquatic lifestyle from more terrestrial ancestors... .

Newly named dinosaurs

Data courtesy of George Olshevsky

George Olshevsky

George Olshevsky is a freelance editor, writer, publisher, amateur paleontologist, and mathematician living in San Diego, California.Olshevsky maintains the comprehensive online Dinosaur Genera List...

's dinosaur genera list and Dr. Jeremy Montague's dinosaur genus database.

Name	Status	Authors		Notes	Images
Probactrosaurus Probactrosaurus Probactrosaurus is an early herbivorous hadrosauroid iguanodont dinosaur. It lived in China during the Early Cretaceous period....	Valid taxon	Anatoly K. Rozhdestvensky

Non-mammalian

Name	Status	Authors	Discovery year	Age	Unit	Location	Notes	Images
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