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References
- 1 2 3 4 5 Prothero, Donald R.; Emry, Robert J. (2004). "5. The Chadronian, Orellan, and Whitneyan North American Land Mammal Ages". In Woodburne, Michael O. (ed.). Late Cretaceous and Cenozoic Mammals of North America: Biostratigraphy and Geochronology. Columbia University Press. pp. 156–168. doi:10.7312/wood13040-007. ISBN 978-0-231-13040-0.
- 1 2 Hanneman, Debra; Lofgren, Don; Hasiotis, Stephen; McIntosh, William (2022). "Late Eocene (Priabonian) chronostratigraphy, depositional environment, and paleosol-trace fossil associations, Pipestone Springs, southwest Montana". Acta Palaeontologica Polonica. 67: 5–20. doi: 10.4202/app.00901.2021 . ISSN 0567-7920.
- ↑ Fostowicz-Frelik, Łucja; Tabrum, Alan R. (2009). "Leporids (Mammalia, Lagomorpha) from the Diamond O Ranch Local Fauna, Latest Middle Eocene of Southwestern Montana". Annals of Carnegie Museum. 78 (3): 253–271. doi:10.2992/007.078.0303. ISSN 0097-4463.
- ↑ Sweedler, Rory E.; Eberle, Jaelyn J.; Mihlbachler, Matthew C. (2021-06-01). "A latest Eocene (Chadronian) brontothere (Mammalia, Perissodactyla) from the Antero Formation, South Park, Colorado". Rocky Mountain Geology. 56 (1): 37–50. doi:10.24872/rmgjournal.56.1.37. ISSN 1555-7340.
- ↑ Lloyd, K. J.; Eberle, J. J. (2012-09-01). "A late Eocene (Chadronian) mammalian fauna from the White River Formation in Kings Canyon, northern Colorado". Rocky Mountain Geology. 47 (2): 113–132. doi:10.2113/gsrocky.47.2.113. ISSN 1555-7332.
- ↑ Lucas, Spencer G. (2015). "Eocene fossil vertebrates of New Mexico". New Mexico Museum of Natural History and Science Bulletin. Vol. 68. pp. 149–157.
- ↑ Jiménez-Hidalgo, Eduardo; Smith, Krister T.; Guerrero-Arenas, Rosalia; Alvarado-Ortega, Jesus (2015). "The first Late Eocene continental faunal assemblage from tropical North America". Journal of South American Earth Sciences. 57: 39–48. doi:10.1016/j.jsames.2014.12.001.
- ↑ Jiménez-Hidalgo, Eduardo; Lander, E. Bruce; Israde-Alcántara, Isabel; Rodríguez-Caballero, Nadia Wendoline; Guerrero-Arenas, Rosalía (2021). "Earliest Arikareean (later early Oligocene) Iniyoo local Fauna from Chilapa Formation of Santiago Yolomécatl area in northwestern Oaxaca, southern Mexico". Journal of South American Earth Sciences. 109: 103307. doi:10.1016/j.jsames.2021.103307.
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