Tirabuzon Formation

Tirabuzon Formation
Stratigraphic range: Pliocene
Type	Formation
Lithology
Primary	Siltstone, mudstone
Other	Sandstone
Location
Region	Baja California
Country	Mexico

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[1]

• aff. Pontoporia species
• cf. Scaphokogia species
• Stenella species
• Balaenopterinae indeterminate
• Otariinae indeterminate
• Phocoeninae indeterminate
• Kogiidae indeterminate
• Physeteridae indeterminate

Sharks[2]

• Carcharhinus brachylurus
• Carcharhinus galapagensis
• Carcharhinus albimarginatus
• Carcharhinus velox
• Carcharhinus limbatus
• Carcharhinus altimus
• Carcharhinus falciformis
• Carcharhinus obscurus
• Carcharhinus leucas
• Carcharodon carcharias
• Carcharodon sulcidens
• Galeocerdo rosaliaensis
• Hemipristis serra
• Hexanchus griseus
• Isurus benedeni
• Isurus oxyrinchus
• Megalodon
• Odontaspis acutissima
• Prionace glauca
• Rhizoprionodon longurio
• Sphyrna vespertina
• Sphyrna mokarran
• Sphyrna zygaena
• Sphyrna lewini
• Sphyrna media
• Cetorhinus species
• Heterodontus species
• Notorhynchus species
• Squalus species

Bivalves[3]

• Argopecten ventricosus
• Argopecten cf. callidus
• Argopecten mendenhalli
• Chagrepecten dallasi
• Chlamys corteziana
• Chlamys opuntia
• Euvola vogdesi
• Flabellipecten stearnsii
• Flabellipecten refugioensis
• Leopecten bakeri
• Leptopecten latiauratus
• Nodipecten subnodosus
• Patinopecten santarosaliensis
• Patinopecten species

See also

• List of fossiliferous stratigraphic units in Mexico

References

1. Santa Rosalia at Fossilworks.org
2. Corkscrew Hill at Fossilworks.org
3. Loc.81/1198 at Fossilworks.org

External links

• Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Retrieved 8 July 2014.