Almejas Formation

The Almejas Formation is a geologic formation in Mexico. It preserves fossils dating back to the Late Miocene to Early Pliocene of the Neogene period.

Fossil content
Various fossils have been found in the formation:

Mammals

 * Aivukus cedrosensis
 * Albireo whistleri
 * Balaenoptera sp.
 * Denebola brachycephala
 * Dusignathus santacruzensis
 * Parapontoporia pacifica
 * Piscolithax boreios
 * Piscolithax tedfordi
 * aff. Plesiocetus sp.
 * Praekogia cedrosensis
 * Thalassoleon mexicanus

Birds

 * Cerorhinca minor
 * Mancalla cedrosensis
 * ?Megapaloelodus opsigonus
 * Morus sp.
 * Puffinus tedfordi
 * ?Synthliboramphus sp.

Fishes

 * Carcharodon cf. carcharias
 * Carcharhinus sp.
 * Megalodon