Back Massetognathus Spanish جوشیآرواره Persian Massetognathus Italian 마세토그나투스 Korean Massetognathus Dutch Massetognathus Portuguese Massetognathus Russian Massetognathus Swedish Massetognathus Ukrainian 囓頜獸屬 Chinese
| Massetognathus Temporal range: early Late Triassic
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Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Clade: | Synapsida |
| Clade: | Therapsida |
| Clade: | Cynodontia |
| Family: | †Traversodontidae |
| Subfamily: | †Massetognathinae |
| Genus: | †Massetognathus Romer 1967 |
| Type species | |
| †Massetognathus pascuali Romer 1967
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| Species | |
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Massetognathus (/ˌmæsɪˈtɒɡnəθəs/ MASS-ə-TOG-nə-thəss; Greek for "chewing muscle jaw") is an extinct genus of plant-eating traversodontid cynodonts. They lived during the Triassic Period about 235 million years ago, and are known from the Chañares Formation in Argentina and the Santa Maria Formation in Brazil.[1]
- ^ Schmitt, Maurício Rodrigo; Martinelli, Agustín G.; Melo, Tomaz Panceri; Soares, Marina Bento (2019-08-01). "On the occurrence of the traversodontid Massetognathus ochagaviae (Synapsida, Cynodontia) in the early late Triassic Santacruzodon Assemblage Zone (Santa Maria Supersequence, southern Brazil): Taxonomic and biostratigraphic implications". Journal of South American Earth Sciences. 93: 36–50. Bibcode:2019JSAES..93...36S. doi:10.1016/j.jsames.2019.04.011. ISSN 0895-9811. S2CID 150326079.