Massetognathus

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.

Massetognathus
Temporal range: early Late Triassic
~
Skeleton
Scientific classification
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
Species
  • Massetognathus teruggi
  • Massetognathus ochagaviae
  • Massetognathus major
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