- The
Clarkforkian North American Stage, on the
geologic timescale, is the
North American faunal stage according to the
North American Land
Mammal Ages chronology...
-
Franceschi D, Métais G, De Bast E, et al. (January 29, 2014). "First
Clarkforkian Equivalent Land
Mammal Age in the
Latest Paleocene Basal Sparnacian Facies...
-
Wasatchian (NALMA classification)
DeBeque Formation of
Colorado and the
Clarkforkian Wasatch Formation to
Tiffanian Fort
Union Formation in Wyoming. Three...
-
Neoliotomus conventus,
named by
Jepsen G.L. in 1930, is
known from the
Clarkforkian (Paleocene)
DeBeque Formation of
Wyoming and of the Fort
Union Formation...
-
boundary source of the base of the
Clarkforkian (approximate). Ti1:
Upper boundary source of the base of the
Clarkforkian (approximate)
Multituberculata -...
- Paleontology. 15: 1–141. hdl:2027.42/48615. Rose, K.D. (1981). "The
Clarkforkian Land-Mammal Age and
mammalian faunal composition across the Paleocene-Eocene...
-
species are known,
making their last
appearance in the Late
Paleocene Clarkforkian stage. Gingerich, P. D. (1979). "Lambertocyon eximius, a new arctocyonid...
- Wyoming's
Bighorn Basin in
North America, a
slice of time
known as the
Clarkforkian North American Land
Mammal Age. Like its
modern relatives, Ceratosuchus...
-
peregrinus is an
extinct species of pine in the
family Pinaceae known from
Clarkforkian age
Paleocene fossils found in
western North Dakota, USA. The species...
- 46.2 Ma. Wasatchian:
Lower boundary 55.8 Ma.
Upper boundary 50.3 Ma.
Clarkforkian:
Lower boundary 56.8 Ma.
Upper boundary 55.8 Ma. Tiffanian:
Lower boundary...
