Tirabuzon Formation
The Tirabuzon Formation is a geologic formation in Mexico. It preserves fossils dating back to the Neogene period, Pliocene epoch.
Fossil content
The following fossils have been reported:;Mammals
- aff. Pontoporia species
- cf. Scaphokogia speciesStenella species
- Balaenopterinae indeterminate
- Otariinae indeterminate
- Phocoeninae indeterminate
- Kogiidae indeterminate
- Physeteridae indeterminate
- MegalodonOdontaspis acutissimaPrionace glaucaRhizoprionodon longurioSphyrna vespertinaSphyrna mokarranSphyrna zygaenaSphyrna lewiniSphyrna mediaCetorhinus speciesHeterodontus speciesNotorhynchus speciesSqualus species