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Machaeroprosopus

genus

Sensitive Classification

Fossils are sensitive in nature and should not be collected unless it is done legally and responsibly. Vertebrate fossils are illegal to collect on public lands.

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On Wikipedia

Machaeroprosopus is an extinct genus of pseudopalatine phytosaurid from the Late Triassic of the southwestern United States. M. validus, once thought to be the type species of Machaeroprosopus, was named in 1916 on the basis of three complete skulls from Chinle Formation, Arizona. The skulls have been lost since the 1950s, and a line drawing in the original 1916 description is the only visual record of the specimen. Another species, M. andersoni, was named in 1922 from New Mexico, and the species M. adamanensis, M. gregorii, M. lithodendrorum, M. tenuis, and M. zunii were named in 1930. Most species have been reassigned to the genera Smilosuchus, Rutiodon, Pseudopalatus, or Phytosaurus. Until recently, M. validus was considered to be the only species that has not been reassigned. Thus,…

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Formations Found In

Chinle Formation

16 Observations

Chinle Formation (AZTRc;0)

16 Observations

Trujillo Formation

Trujillo Formation (NMTRt;0)

Piedmont alluvial deposits (NMQp;0)

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