56 - 37.71 Ma
The definition of this interval in the timescale Paleogene Mammal Ages of Asia is taken from the following source:
- J. Meng and M. C. McKenna. 1998. Faunal turnovers of Paleogene mammals from the Mongolian Plateau. Nature 394:364-367 view
There are intervals in 11 timescales which overlap this one. show
- International Chronostratigraphic Timescale: Bartonian age, Ypresian age, Lutetian age, Eocene epoch
- Cenozoic Subepochs: Early Eocene subepoch, Middle Eocene subepoch
- Mammal Paleogene Zones: MP 12 zone, MP 11 zone, MP 7 zone, MP 8 + 9 zone, MP 16 zone, MP 13 zone, MP 15 zone, MP 10 zone, MP 14 zone
- Paleogene Mammal Ages of Asia: Irdinmanhan age, Arshantan age, Bumbanian age
- North American Land Mammal Ages: Wasatchian age, Bridgerian age, Uintan age, Duchesnean age
- North American Mammal Subages/Zones: Twinbuttean subage, Late Uintan subage, Lysitean subage, Gardnerbuttian subage, Early Uintan subage, Graybullian subage, Sandcouleean subage, Blacksforkian subage, Lostcabinian subage
- South American Land Mammal Ages: Mustersan age, Divisaderan age, Casamayoran age
- Calcareous Nannoplankton Zones: NP13 zone, NP12 zone, NP15 zone, NP16 zone, NP11 zone, NP10 zone, NP14 zone, NP17 zone
- Planktic Foraminiferal Zones: G. pseudomenardii TRZ zone, M. aragonensis/M. subbotinae CRZ zone, M. velascoensis PRZ zone, M. formosa LOZ zone, M. crassatus HOZ zone, A. sibaiyaensis LOZ zone, P. wilcoxensis/M. velascoensis CRZ zone, G. kugleri/M. aragonensis CRZ zone, A. pentacamerata PRZ zone, A. topilensis PRZ zone, G. nuttalli LOZ zone, G. semiinvoluta HOZ zone, M. marginodentata PRZ zone, A. cuneicamerata LOZ zone, M. lehneri PRZ zone, O. beckmanni TRZ zone
- Geomagnetic Polarity Chrons: C17 chron, C24 chron, C20 chron, C22 chron, C23 chron, C19 chron, C18 chron, C21 chron
- Cretaceous-Cenozoic of New Zealand: Heretaungan age, Dannevirke epoch, Bortonian age, Waipawan age, Porangan age, Kaiatan age, Arnold epoch, Mangaorapan age
This interval is used in the definition of 21 collections
A total of 12649 collections with 118341 occurrences lie within this time span