and two pairs of large elongated flippers

The most notable thing about Brachiosaurus altithorax is its characteristic high-necked posture

which it used to grab and pull out vegetation

The tail was relatively stiff due to ossified tendons

Dimetrodon Variant:Unprimed and two pairs of largeDimetrodon (D. grandis, "Wedgetooth"), is an extinct genus of non mammalian synapsids that lived during the Kungurian Age of the Lower Permian, between 295 and 272 million years ago, was a terrestrial animal and is believed to have lived in swampy areas and river banks, near bodies of fresh water where they could find food. It is a member of the Sphenacodontidae family and is the best known of the Pelicosaurs, especially for its spectacular sail. It