- The
Clarkforkian North American Stage, on the
geologic timescale, is the
North American faunal stage according to the
North American Land
Mammal Ages chronology...
-
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...
-
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...
- 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...
-
boundary source of the base of the
Clarkforkian (approximate). Ti1:
Upper boundary source of the base of the
Clarkforkian (approximate)
Multituberculata -...
-
Great Divide Basin in
southern Wyoming and a
revised biozonation of the
Clarkforkian land
mammal age".
Journal of
Vertebrate Paleontology. e2424139. doi:10...
- 33.9 mya,
calculates to a
period of 21.9
million years Faunal stage:
Clarkforkian through early Chadronian The Avon Park
formation is
located on the crest...
