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Scutosaurus
Scutosaurus
("Shield lizard") was a genus of parareptiles. It was an armor-covered pareiasaur that lived around 254–252 million years ago in Russia, in the later Permian
Permian
period. Its genus name refers to large plates of armor scattered across its body. It was a large anapsid reptile that, unlike most reptiles, held its legs underneath its body to support its great weight.[1]

Contents

1 Palaeobiology

1.1 Skull

2 References 3 External links

Palaeobiology[edit]

Restoration

Skull of S. karpinski

Scutosaurus
Scutosaurus
being attacked by Inostrancevia

Scutosaurus
Scutosaurus
was a massively built reptile, up to 3 metres (9.8 ft) in length, with bony armor, and a number of spikes decorating its skull.[1] Despite its relatively small size, Scutosaurus
Scutosaurus
was heavy, and its short legs meant that it could not move at speed for long periods of time, which made it vulnerable to attack by large predators. To defend itself Scutosaurus
Scutosaurus
had a thick skeleton covered with powerful muscles, especially in the neck region. Underneath the skin were rows of hard, bony plates (scutes) that acted like a form of brigandine armor. As a plant-eater living in a semi-arid climate, Scutosaurus
Scutosaurus
would have wandered widely in order to find fresh foliage to eat. It may have stuck closely to the riverbanks and floodplains where plant life would have been more abundant, straying further afield only during times of drought. Its teeth were flattened and could grind away at the leaves and young branches before digesting them at length in its large gut. Given that it needed to eat constantly, Scutosaurus
Scutosaurus
probably lived alone, or in very small herds, so as to avoid denuding large areas of their edible plants. Skull[edit] The skull is about 50 cm wide. It is very broad, flat, and strongly sculptured, and bears bony protuberances in the jugal (cheek) and rear regions. As with some species of Pareiasaurus, with which it is clearly related, the quadrato-jugal or cheekbones extend outwards and forwards, making an angle of about 120° with the maxillary border. With its large cheekbones, Scutosaurus
Scutosaurus
may have been able to make a loud bellowing sound.[citation needed] References[edit]

^ a b Palmer, D., ed. (1999). The Marshall Illustrated Encyclopedia of Dinosaurs and Prehistoric Animals. London: Marshall Editions. p. 64. ISBN 1-84028-152-9. 

Paleontology portal

External links[edit]

Pareiasaurinae at Palaeos

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Parareptilia

Kingdom: Animalia Phylum: Chordata Class: Sauropsida

Basal Parareptiles

Mesosauria

Mesosauridae

Brazilosaurus Mesosaurus Stereosternum

Millerosauria

 ?Eunotosaurus

Millerettidae

Broomia Heleophilus Milleretta Millerosaurus Milleropsis Nanomilleretta

Procolophonomorpha

Australothyris Ankyramorpha

Bolosauria

Erpetonyx

Bolosauridae

Belebey Bolosaurus Eudibamus

Related clades

Eureptilia

Hallucicrania
Hallucicrania
(=Ankyramorpha)

Lanthanosuchoidea

Colobomycter Delorhynchus Feeserpeton

Acleistorhinidae

Acleistorhinus

Lanthaniscidae

Lanthaniscus

Lanthanosuchidae

Chalcosaurus Lanthanosuchus

Procolophoniformes

Microleter

Nyctiphruretidae

Abyssomedon Nyctiphruretus

Procolophonia

Pareiasauromorpha Procolophonoidea

Pareiasauromorpha

Nycteroleteridae

Bashkyroleter Emeroleter Macroleter Nycteroleter Rhipaeosaurus

Pareiasauria

Bradysaurus Bunostegos Deltavjatia Embrithosaurus Nochelesaurus Parasaurus

Pareiasauridae

Arganaceras Elginia Obirkovia Pareiasaurus Pareiasuchus Sanchuansaurus Scutosaurus Shansisaurus Shihtienfenia

Pumiliopareiasauria

Anthodon Nanopareia Provelosaurus Pumilopareia

Procolophonoidea

Owenettidae

Barasaurus Candelaria Owenetta Ruhuhuaria Saurodektes

Procolophonidae

Coletta  ?Gomphiosauridion  ?Kinelia Kitchingnathus Lasasaurus Phaanthosaurus Pintosaurus Sauropareion  ?Spondylolestes Tichvinskia  ?Xenodiphyodon

Leptopleuroninae

Koiloskiosaurus Neoprocolophon Pentaedrusaurus Phonodus

Leptopleuronini

Hypsognathus Leptopleuron Libognathus Soturnia

Sclerosaurini

 ?Basileosaurus Sclerosaurus Scoloparia

Procolophoninae

Anomoiodon Burtensia Eumetabolodon  ?Insulophon  ?Lestanshoria Orenburgia Kapes Procolina Procolophon  ?Samaria Teratophon Timanophon Thelephon Thelerpeton

Theledectinae

Theledectes

Related articles and categories

Pareiasaurs Parareptiles Parareptile

Taxon identifiers

Wd: Q131745 EoL: 4532167 Fossilworks: 37565 G

.