Temporal range: early Late Triassic ~235.0–221.5 Ma
PreꞒ
Ꞓ
O
S
D
C
P
T
J
K
Pg
N
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
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. doi:10.1016/j.jsames.2019.04.011. ISSN 0895-9811. S2CID 150326079.
juvenile Massetognathus and dicynodonts. Additionally, the slightly larger Chanaresuchus and Pseudolagosuchus also preyed on individual Massetognathus that...
four species from the Middle and Late Triassic: Massetognathus pascuali from Argentina, Massetognathus ochagaviae and Santacruzodon hopsoni from southern...
(Kyrgyzstan) Berdyankian Berdyanka River, Russia Mastodonsaurus giganteus Massetognathus, Dinodontosaurus, Stahleckeria late Anisian to early Carnian Bukobay...
Dinodontosaurus Assemblage Zone Cranial remains A traversodontid cynodont Massetognathus M. ochagavie Bom Retiro, Vale Verde, Dona Francisca Lower and Middle...
dicynodont Dinodontosaurus, and cynodonts such as Probainognathus and Massetognathus, the latter being the most abundant taxon of the locality. Archosaurs...
be higher than in more basal cynodonts, such as the traversodontid Massetognathus, but lower than in basal mammaliaforms and modern mammals. Like other...
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