Pristerodon
Pristerodon is an extinct genus of dicynodont therapsid from the Late Permian of South Africa, Zambia and India.
Restoration of Pristerodon mackayi
Size of Pristerodon mackayi relative to a human.
| Pristerodon Temporal range: Late Permian | |
|---|---|
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| Skull at the Museum für Naturkunde, Berlin | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Clade: | Therapsida |
| Clade: | †Dicynodontia |
| Family: | †Eumantellidae |
| Genus: | †Pristerodon Huxley, 1868 |
| Type species | |
| †Pristerodon mackayi Huxley, 1868 | |
| Synonyms | |
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Paleobiology
Brain and senses
Pristerodon were among the earliest land animals able to hear airborne sound as opposed to hearing via ground vibrations. A South African specimen studied with neutron tomography[1] has shown evidence of an eardrum on its lower jaw with the implication that it was hearing impaired during the act of chewing. The specimen had a 3mm cavity for cochlea which transformed sound frequency ranges into nerve impulses sent on to the brain.
Ecology
Pristerodon were herbivores living on flood plains.
See also
References
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Wikimedia Commons has media related to Pristerodon. |
- Laaß, Michael (26 June 2015). "The origins of the cochlea and impedance matching hearing in synapsids" (PDF). Acta Palaeontologica Polonica. 60. doi:10.4202/app.00140.2014. Retrieved 14 July 2015.
External links
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