Riochican
Encyclopedia
The Riochican age is a period of geologic time (57.0—54.0 Ma) within the Paleocene
epoch of the Paleogene
used more specifically with South American Land Mammal Ages. It follows the Itaboraian
and precedes the Casamayoran
age.
Paleocene
The Paleocene or Palaeocene, the "early recent", is a geologic epoch that lasted from about . It is the first epoch of the Palaeogene Period in the modern Cenozoic Era...
epoch of the Paleogene
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 South American Land Mammal Ages. It follows the Itaboraian
Itaboraian
The Itaboraian age is a period of geologic time within the Paleocene epoch of the Paleogene used more specifically with South American Land Mammal Ages. It follows the Peligran and precedes the Riochican age....
and precedes the Casamayoran
Casamayoran
The Casamayoran age is a period of geologic time within the Eocene epoch of the Paleogene used more specifically with South American Land Mammal Ages. It follows the Riochican and precedes the Mustersan age....
age.