Deseadan
Encyclopedia
The Deseadan age is a period of geologic time (29.0—21.0 Ma) within the Oligocene
epoch of the Paleogene
used more specifically with South American Land Mammal Ages. It follows the Tinguirirican
and precedes the Colhuehuapian
age.
Oligocene
The Oligocene is a geologic epoch of the Paleogene Period and extends from about 34 million to 23 million years before the present . As with other older geologic periods, the rock beds that define the period are well identified but the exact dates of the start and end of the period are slightly...
epoch of the Paleogene
Paleogene
The Paleogene is a geologic period and system that began 65.5 ± 0.3 and ended 23.03 ± 0.05 million years ago and comprises the first part of the Cenozoic Era...
used more specifically with South American Land Mammal Ages. It follows the Tinguirirican
Tinguirirican
The Tinguirirican age is a period of geologic time within the Oligocene epoch of the Paleogene used more specifically with South American Land Mammal Ages. It follows the Divisaderan and precedes the Deseadan age....
and precedes the Colhuehuapian
Colhuehuapian
The Colhuehuapian age is a period of geologic time within the Miocene epoch of the Neogene used more specifically with South American Land Mammal Ages. It follows the Deseadan and precedes the Santacrucian age....
age.