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:Arroyo Delphin at Fossilworks.org
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
See also
List of fossiliferous stratigraphic units in Mexico
References