Laventan
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The Laventan () age is a period of
geologic time The geologic time scale or geological time scale (GTS) is a representation of time based on the rock record of Earth. It is a system of chronological dating that uses chronostratigraphy (the process of relating strata to time) and geochronolo ...
(13.8 to 11.8 Ma) within the
Middle Miocene The Middle Miocene is a sub-epoch of the Miocene epoch (geology), epoch made up of two Stage (stratigraphy), stages: the Langhian and Serravallian stages. The Middle Miocene is preceded by the Early Miocene. The sub-epoch lasted from 15.97 ± 0. ...
epoch of the
Neogene The Neogene ( ,) is a geologic period and system that spans 20.45 million years from the end of the Paleogene Period million years ago ( Mya) to the beginning of the present Quaternary Period million years ago. It is the second period of th ...
, used more specifically within the SALMA classification in South America. It follows the Colloncuran and precedes the
Mayoan The Mayoan () age is a period of geologic time from 11.8 to 10 Ma, within the Middle to Late Miocene epoch of the Neogene, used more specifically within the SALMA classification in South America. It follows the Laventan and precedes the Chasico ...
age.


Etymology

The age is named after the Miocene
Lagerstätte A Fossil-Lagerstätte (, from ''Lager'' 'storage, lair' '' Stätte'' 'place'; plural ''Lagerstätten'') is a sedimentary deposit that preserves an exceptionally high amount of palaeontological information. ''Konzentrat-Lagerstätten'' preserv ...
La Venta, where a rich
biodiversity Biodiversity is the variability of life, life on Earth. It can be measured on various levels. There is for example genetic variability, species diversity, ecosystem diversity and Phylogenetics, phylogenetic diversity. Diversity is not distribut ...
from the Middle Miocene has been recovered from the Honda Group.


Formations


Fossil content


Correlations

The Laventan (13.8 to 11.8 Ma) correlates with: * NALMA ** latest
Barstovian The Barstovian North American Stage on the geologic timescale is the North American faunal stage according to the North American Land Mammal Ages chronology (NALMA), typically set from 16,300,000 to 13,600,000 years BP, a period of . It is usua ...
(15.97-13.65 Ma)Barstovian
at
Fossilworks Fossilworks was a portal which provides query, download, and analysis tools to facilitate access to the Paleobiology Database, a large relational database assembled by hundreds of paleontologists from around the world. History Fossilworks was cr ...
.org
** early
Clarendonian The Clarendonian North American Stage on the geologic timescale is the North American faunal stage according to the North American Land Mammal Ages chronology (NALMA), typically set from 13,600,000 to 9,000,000 years BP, a period of . It is us ...
(13.65-10.3 Ma)Clarendonian
at
Fossilworks Fossilworks was a portal which provides query, download, and analysis tools to facilitate access to the Paleobiology Database, a large relational database assembled by hundreds of paleontologists from around the world. History Fossilworks was cr ...
.org
* Californian ages ** Luisian (15.5-13.5 Ma) * ELMA -
Astaracian The Astaracian age is a period of geologic time (), equivalent with the Middle Miocene and used more specifically with European Land Mammal Ages. It precedes the Vallesian age and follows the Orleanian age. The Astaracian overlaps the Langhian a ...
(15.97-11.608 Ma)Astaracian
at
Fossilworks Fossilworks was a portal which provides query, download, and analysis tools to facilitate access to the Paleobiology Database, a large relational database assembled by hundreds of paleontologists from around the world. History Fossilworks was cr ...
.org
* CPSCentral Paratethys Stages
at
Fossilworks Fossilworks was a portal which provides query, download, and analysis tools to facilitate access to the Paleobiology Database, a large relational database assembled by hundreds of paleontologists from around the world. History Fossilworks was cr ...
.org
** Badenian (13.65-12.7 Ma)Badenian
at
Fossilworks Fossilworks was a portal which provides query, download, and analysis tools to facilitate access to the Paleobiology Database, a large relational database assembled by hundreds of paleontologists from around the world. History Fossilworks was cr ...
.org
**
Sarmatian The Sarmatians (; ; Latin: ) were a large confederation of Ancient Iranian peoples, ancient Iranian Eurasian nomads, equestrian nomadic peoples who dominated the Pontic–Caspian steppe, Pontic steppe from about the 5th century BCE to the 4t ...
(12.7-11.608 Ma)
Sarmatian] at
Fossilworks Fossilworks was a portal which provides query, download, and analysis tools to facilitate access to the Paleobiology Database, a large relational database assembled by hundreds of paleontologists from around the world. History Fossilworks was cr ...
.org
* Stratigraphy of New Zealand, New Zealand stratigraphy - Southland epoch (15.9-10.92 Ma)Southland epoch
at
Fossilworks Fossilworks was a portal which provides query, download, and analysis tools to facilitate access to the Paleobiology Database, a large relational database assembled by hundreds of paleontologists from around the world. History Fossilworks was cr ...
.org
** Lillburnian (15.1-12.98 Ma)Lillburnian
at
Fossilworks Fossilworks was a portal which provides query, download, and analysis tools to facilitate access to the Paleobiology Database, a large relational database assembled by hundreds of paleontologists from around the world. History Fossilworks was cr ...
.org
** early Waiauan (12.98-10.92 Ma)Waiauan
at
Fossilworks Fossilworks was a portal which provides query, download, and analysis tools to facilitate access to the Paleobiology Database, a large relational database assembled by hundreds of paleontologists from around the world. History Fossilworks was cr ...
.org
* Australian ages ** Bairnsdalian (15.0-10.5 Ma) * Japanese ages ** Tozawan (15.97-13.5 Ma) * NMAC - Tunggurian (13.65-11.1 Ma)Tunggurian
at
Fossilworks Fossilworks was a portal which provides query, download, and analysis tools to facilitate access to the Paleobiology Database, a large relational database assembled by hundreds of paleontologists from around the world. History Fossilworks was cr ...
.org


References


Bibliography

;Laventan * ;Honda Group, Colombia * * * * * * * * * * * * * * * * * * * * * * * * * * * * ;Honda Group, Bolivia * * * * ;Aisol Formation * * ;Bahía Inglesa Formation * * * * * * * * * * * * * ;Capadare Formation * * ;Choquecota and Mauri Formations * ;Cura-Mallín Group * * * ;Gran Bajo del Gualicho Formation * ;Ipururo and Pebas Formations * * ;Paraná Formation * * ;Pisco Formation * * * * * * * * * * * * * * ;Santa Inés Formation * ;Sincelejo Formation * ;Socorro and Urumaco Formations * * * * *


Further reading

* * * * * * {{SALMA Miocene South America Neogene Colombia