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

Platyhystrix
Platyhystrix
(small, foreground) and Edaphosaurus

Platyhystrix
Platyhystrix
may have been preyed upon by larger temnospondyls such as Eryops, or by larger carnivorous reptiles, which were becoming more common and diverse in the drier climate of the Permian. The skull was large and strongly built, with a frog-like face. Platyhystrix
Platyhystrix
had a compact body, reaching 1 metre (3.3 ft) long including the tail, and its short, sturdy legs indicate a mainly terrestrial life.[1] Platyhystrix
Platyhystrix
appeared rather unusual: the dorsal vertebrae were extraordinarily lengthened, and in life they probably formed a skin-covered sail. This structure was possibly for thermal regulation, as in other animals of similar appearance, such as the pelycosaurs Dimetrodon
Dimetrodon
and Edaphosaurus. The back of Platyhystrix
Platyhystrix
was also covered with thick hard plates, similar to those of its near relative, Cacops.[1] References[edit]

Permian
Permian
portal Paleontology portal

^ a b Palmer, D., ed. (1999). The Marshall Illustrated Encyclopedia of Dinosaurs and Prehistoric Animals. London: Marshall Editions. p. 52. ISBN 1-84028-152-9. 

Vertebrate Palaeontology by Michael J. Benton and John Sibbick The Simon & Schuster Encyclopedia of Dinosaurs and Prehistoric Creatures: A Visual Who's Who of Prehistoric Life by Barry Cox, Colin Harrison, R.J.G. Savage, and Brian Gardiner Bibliography Of Fossil Vertebrates 1934-1938 by C. I. Camp

v t e

Euskelians

Kingdom: Animalia Phylum: Chordata Class: Amphibia Order: Temnospondyli

Major clades

Dissorophoidea Eryopoidea

Dissorophoidea

Amphibamidae

Amphibamus Doleserpeton Eoscopus Georgenthalia Gerobatrachus Limnerpeton Micropholis Nanobamus Pasawioops Platyrhinops Plemmyradytes Rubeostratilia Tersomius

Branchiosauridae

Branchiosaurinae

Apateon Branchiosaurus Melanerpeton Milnererpeton Schoenfelderpeton

Tungussogyrinae

Tungussogyrinus

Micromelerpetontidae

Branchierpeton Limnogyrinus Micromelerpeton

Olsoniformes

Dissorophidae

Alegeinosaurus Anakamacops Arkanserpeton Aspidosaurus Astreptorhachis  ?Ecolsonia Fayella Iratusaurus Mordex Platyhystrix

Eucacopinae

Brevidorsum Cacops Conjunctio Kamacops Reiszerpeton Scapanops Zygosaurus

Dissorophinae

Broiliellus Dissorophus

Trematopidae

Acheloma Actiobates Anconastes  ?Ecolsonia Fedexia Phonerpeton Rotaryus Tambachia

Others

Stegops

Eryopoidea

Eryopidae

Clamorosaurus Eryops Onchiodon Osteophorus Syndyodosuchus

Parioxyidae

Parioxys

Zatrachydidae

Acanthostomatops Dasyceps Zatrachys

Related categories

Temnospondyls Carboniferous
Carboniferous
amphibians Permian
Permian
amphibians Triassic
Triassic
amphibians

Taxon identifiers

Wd: Q135586 EoL: 4358884 Fossilworks: 37034 G

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