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| rdfs:comment | - The Pareiasaurs - Family Pareiasauridae - are a clade of medium-sized to large herbivorous anapsid reptiles that flourished during the Permian period. Their build was quite stocky, often with rather short tails and small heads. These ungainly-looking animals had very large bodies, ranging from 60 to 300 centimeters (2.0 to 9.8 ft) long, and weights of 600 kilograms (1,300 lb) would not been unusual. They also had strong limbs, broad feet, and short tails. They were protected with bony scutes (osteoderms) set in the skin, as a defense against predators. Their heavy skulls were ornamented with multiple knobs and ridges.
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| Row 4 info | - (Lydekker, 1889)
- Pareiasauridae
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| Row 5 info | - *Arganaceras
*Bradysaurus
*Nochelesaurus
*Embrithosaurus
*Deltavjatia
*Velosauria
*Shihtienfenia
*Pareiasuchus
*Pareiasaurus
*Scutosaurus
*Elginia
*Nanopareia
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| Name | |
| Caption | - Scutosaurus karpinskii from the Late Permian of Russia.
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| fossil range | - Middle Permian—Late Permian
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| abstract | - The Pareiasaurs - Family Pareiasauridae - are a clade of medium-sized to large herbivorous anapsid reptiles that flourished during the Permian period. Their build was quite stocky, often with rather short tails and small heads. These ungainly-looking animals had very large bodies, ranging from 60 to 300 centimeters (2.0 to 9.8 ft) long, and weights of 600 kilograms (1,300 lb) would not been unusual. They also had strong limbs, broad feet, and short tails. They were protected with bony scutes (osteoderms) set in the skin, as a defense against predators. Their heavy skulls were ornamented with multiple knobs and ridges. The leaf-shaped multi-cusped teeth resemble those of iguanas, caseids, and other reptilian herbivores. This dentition, together with the deep capacious body, which could have housed an extensive digestive tract, indicate that these fearsome-looking animals were herbivores. Lee (1997) has argued that pareiasaurs evolved into turtles. They had turtle-like skull features, and in several genera the scutes had developed into bony plates, possibly the precursors of a turtle shell. However, critics have pointed out problems in this view, such as the lack of homology between pareiasaur scutes and the turtle shell.
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