Dimetrodon
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Dimetrodon is an extinct genus of sphenacodontid synapsid that lived during the Cisuralian to early Guadalupian epoch of the Permian period, around 294.1–271 million years ago. With most species measu
Dimetrodon incisivum 01
Maxilla of Dimetrodon borealis, the first Dimetrodon fossil to be described
Restoration of Dimetrodon and Edaphosaurus (background), Charles R. Knight, 1897
Restoration of D. giganhomogenes with exposed neural spine tips
Permian
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The Permian is a geologic period and stratigraphic system which spans 47 million years, from the end of the Carboniferous Period 298.9 Ma to the beginning of the Triassic Period 251.902 Ma. It is the
Dimetrodon
…or ; lit. 'two measures of teeth') is an extinct genus of sphenacodontid synapsid that lived during the Cisuralian to early Guadalupian epoch of the Permian period, around 294.1–271 million years ago. With most species measuring 1.7–4.6 m (5.6–15.1 ft) long and weighing 28–250 kg (62–551 lb), the most…
Selwyn Rock, South Australia, an exhumed glacial pavement of Permian age
Hercosestria cribrosa, a reef-forming productid brachiopod (Middle Permian, Glass Mountains, Texas)
Fossil and life restoration of Permocupes sojanensis, a permocupedid beetle from the Middle Permian of Russia
Edaphosaurus pogonias and Platyhystrix – Early Permian, North America and Europe