Non User
  Index: > A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Business
Non User
 Industries Finance Tax

Home > Miocene

 First Prev [ 1 2 ] Next Last

This epoch is part of the
Tertiary period and the
Neogene subperiod.
Pliocene
Miocene
Oligocene
Eocene
Paleocene

The Miocene Epoch is a period of time that extends from about 5 million to 24 million years before the present. As with other older geologic periods, the rock beds that define the start and end are well identified, but the exact dates of the start and end of the period are slightly uncertain. The Miocene was named by Sir Charles Lyell. The name means roughly "less recent" and refers to the essentially modern mammalian faunas. The Miocene follows the Oligocene Epoch and is followed by the Pliocene Epoch. The Miocene is the fourth epoch of the Tertiary Era.

The Miocene boundaries is not set at an easily identified worldwide event but rather at regional boundaries between the warmer Oligocene the relatively cooler Miocene and the even cooler Pliocene.


1 Miocene Subdivisions

The Miocene faunal stages from youngest to oldest are:

  1. Messinian
  2. Tortonian
  3. Serravalian
  4. Langhian
  5. Tortonian
  6. Aquitanian


The subdivisions within the Miocene are defined by the relative abundance of different species of calacareous nanofossils (calcite platelets shed by brown single-celled algae) and foraminifera (single-celled protists with diagnostic shells).

2 Miocene Climate

Climates remained moderately warm although slow global cooling that eventual led to the Pleistocene glaciations continued.

3 Miocene Paleogeography

Continents continued to drift toward their present positions. Of the modern geologic features, only the land bridge between South AmericaSouth America is a continent crossed by the equator, with most of its area in the Southern Hemisphere. South America is situated between the Pacific Ocean and the Atlantic Ocean. It became attached to North America only recently, geologically speaking, wi and North AmericaNorth America is the third largest continent in area and the fourth ranked in population. It is bounded on the north by the Arctic Ocean, on the east by the North Atlantic Ocean, on the south by the Caribbean Sea, and on the west by the North Pacific Ocea was absent.

Mountain building took place in Western North America and EuropeFor the band of the same name, see Europe (band . Europe is a continent forming the westermost part of the Eurasian supercontinent. Europe is bounded to the north by the Arctic Ocean, to the west by the Atlantic Ocean, to the south by the Mediterranean Se. Both continental and marine Miocene deposits are common worldwide with marine outcrops common near modern shorelines. Well studied continental exposures occur in the American Great Plains and in ArgentinaArgentina is a Spanish-speaking country in southern South America, situated between the Andes in the west and the southern Atlantic Ocean in the east. It is bordered by Paraguay and Bolivia in the north, Brazil and Uruguay in the northeast and Chile in th.

4 Miocene Flora

Grasses begin to spread, and along with them grazing herbivorees develop.

5 Miocene Fauna

Both marine and continental faunaFauna is a collective term for animal life. The corresponding term for plants is flora. Technically, the proper term for fauna plus flora is biota but fauna is often used instead. In zoology and paleontology the term is often used to refer to the typical were fairly modern. Only in isolated South AmericaSouth America is a continent crossed by the equator, with most of its area in the Southern Hemisphere. South America is situated between the Pacific Ocean and the Atlantic Ocean. It became attached to North America only recently, geologically speaking, wi and Australia did widely divergent fauna exist.



Politics Business Finance
Miocene Epoch America Geologic Modern Marine

Topics: Miocene Epoch America Geologic Modern Marine Continental Fauna...

MioceneThe Miocene Epoch is a period of time that extends from about 5 million to 24 million years before the present. As with other older geologic periods, the rock beds that define the start and end are well identified, but the exact dates of the start and end  


Non User