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meaning: "Flat porcupine"
Named By: Williston in 1911
Time Period: Late Carboniferous - Early Permian, 301-298 Ma
Location: USA, Texas
Size: 1 meter long
Diet: Carnivore
Fossil(s): Enough remains are known to enable reconstruction
Classification: | Chordata | Amphibia | Temnospondyli | Euskelia | Dissorophoidea | Dissorophidae |

Platyhystrix (meaning "flat porcupine") was a temnospondyl amphibian with a distinctive sail along its back, similar to the unrelated synapsids, Dimetrodon and Edaphosaurus. It lived during the latest Carboniferous and earliest Permian periods in Texas, about 300 million years ago.

Read more about Platyhystrix at Wikipedia
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