Permian

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1y
Great Dying, l'Inostrancevia dai denti a sciabola svolse un ruolo di primo piano prima di estinguersi - reccom.org
Stahleckeria potens, a genus of dicynodont from middle Triassic Brazil and Namibia. It was about 3 to 4 m. long. by Júlia d'Oliveira
Lisowicia bojani. Lisowicia is a genus of dicynodont synapsids that lived in what is now Poland during the late Norian or earliest Rhaetian age of the Late Triassic Period. About the size of an elephant, it is the largest dicynodont known, and the youngest definitive member of the group
paleozoic
The Permian Extinction was the greatest mass extinction in Earth’s history. The event wiped out 95% of all marine species. The synapsid Lystrosaurus survived the extinction and dominated the landscape afterwards. See more at Earth Archives.
Rubidgea and Bradysaurus in the Late Permian of South Africa some 250 million years ago by Douglas Henderson
Dos sinápsidos de los géneros Biarmosuchus (el solitario de la izquierda) y Estemnosuchus (el gracioso elemento cornado que va en grupo), pérmico superior. Los sinápsidos son uno de los tres grandes grupos reptilianos que existen y de ellos proceden los mamíferos. Arte de Andrey Atuchin