Tirabuzon Formation Explained

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

External links

• Web site: Fossilworks: Gateway to the Paleobiology Database. ((Various Contributors to the Paleobiology Database)). 8 July 2014.

Notes and References

1. https://paleobiodb.org/classic/displayCollResults?collection_no=57779 Santa Rosalia
2. https://paleobiodb.org/classic/displayCollResults?collection_no=154117 Corkscrew Hill
3. https://paleobiodb.org/classic/displayCollResults?collection_no=66170 Loc.81/1198