The Torrejonian North American Stage on the
geologic timescale
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 geochronol ...
is the North American
faunal stage according to the
North American Land Mammal Ages
The North American land mammal ages (NALMA) establishes a geologic timescale for North American fauna beginning during the Late Cretaceous and continuing through to the present. These periods are referred to as ages or intervals (or stages when ref ...
chronology (NALMA), typically set from 63,300,000 to 60,200,000 years
BP lasting .
Paleobiology Database, Torrejonian
/ref>
It is usually considered to overlap the Selandian and Thanetian within the Paleocene.
The Torrejonian is preceded by the Puercan and followed by the Tiffanian NALMA stages.
The Torrejonian is considered to be contained within the Danian and contains the following substages:
*To3: Lower boundary source of the base of the Torrejonian (approximate).
*To2: Lower boundary source of the base of the Torrejonian (approximate) and upper boundary source of the base of the Selandian (approximate).
*To1: Upper boundary source (61.7 Ma) of the base of the Selandian (approximate).
References
Paleocene life
Paleocene animals of North America
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