Arshantan
Encyclopedia
The Arshantan age is a period of geologic time (48.6—37.2 Ma) within the Early Eocene epoch of the Paleogene
used more specifically with Asian Land Mammal Ages
. It follows the Bumbanian
age and precedes the Irdinmanhan
age.
The upper boundary layer of the Arshantan can be the lower boundary of the Priabonian
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 Asian Land Mammal Ages
Asian land mammal ages
The Asian Land Mammal Ages establishes a geologic timescale for prehistoric Asian fauna beginning 58.7 Mya during the Paleogene and continuing through to the Middle Pleistocene...
. It follows the Bumbanian
Bumbanian
The Bumbanian is an Asian Land Mammal Age , 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 precedes the Arshantan ALMA....
age and precedes the Irdinmanhan
Irdinmanhan
The Irdinmanhan age is a period of geologic time 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....
age.
The upper boundary layer of the Arshantan can be the lower boundary of the Priabonian
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 and...