The Arshantan 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 geochrono ...
(48.6–37.2
Ma) within the
Early Eocene
In the geologic timescale the Ypresian is the oldest age or lowest stratigraphic stage of the Eocene. It spans the time between , is preceded by the Thanetian Age (part of the Paleocene) and is followed by the Eocene Lutetian Age. The Ypresian i ...
epoch of the
Paleogene
The Paleogene ( ; British English, also spelled Palaeogene or Palæogene; informally Lower Tertiary or Early Tertiary) is a geologic period, geologic period and system that spans 43 million years from the end of the Cretaceous Period million yea ...
used more specifically with
Asian Land Mammal Ages
The Asian land mammal ages, acronym ALMA, establish a geologic timescale for prehistoric Asian fauna beginning 58.7 Mya during the Paleogene and continuing through to the Miocene ( Aquitanian) (23.03 Ma). These periods are referred to as ages, sta ...
. It follows the
Bumbanian The Bumbanian is an Asian Land Mammal Age (ALMA), a large biozone which corresponds to ages between 55.8–46.8 Ma for finds of fossil mammals in Asia. This zone lies within the Ypresian stage of the Eocene series. It follows the Gashatan ALMA and ...
age and precedes the
Irdinmanhan The Irdinmanhan age is a period of geologic time (48.6–37.2 Ma) within the Middle Eocene epoch of the Paleogene used more specifically with Asian Land Mammal Ages. It follows the Arshantan and precedes the Sharamurunian age.
The Irdinmanhan's lo ...
age.
The upper boundary layer of the Arshantan can be the lower boundary of the
Priabonian
The Priabonian is, in the ICS's geologic timescale, the latest age or the upper stage of the Eocene Epoch or Series. It spans the time between . The Priabonian is preceded by the Bartonian and is followed by the Rupelian, the lowest stage of t ...
Paleo Database: Arshantan
/ref>
Eocene
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