Beginning over 50 million years ago, the Ecoene Epoch saw the emergence of the first ancestors and close relatives of modern mammals. In this episode of Layers with Larry, we learn about the mammals that made the Bighorn Basin their home and which geologic layers document this period of time.

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Graphics in this video include:
"Ypresian Earth 50 mya" by Ron Blakey is licensed under CC BYSA 4.0.
"Notharctus tenebrosus paris" by Ghedoghedo is licensed under CC BYSA 3.0.
"Allognathosuchus" by Ghedoghedo is licensed under CC BYSA 3.0. Photograph taken at the Paleontology Museum of Zurich
"Escala comparativa de Hyracotherium" by Caz41985 is licensed under CC BYSA 4.0.
Phenacodus by Heinrich Harder (1858 – 1935) circa 1920. https://commons.wikimedia.org/wiki/Fi...

To read more about Notharctus:
https://www.britannica.com/topic/Noth...
https://www.nbcnews.com/id/wbna45960657
https://news.ufl.edu/archive/2012/01/...

To read more about the Eocene Epoch:
https://www.britannica.com/science/Eo...
https://www.pbs.org/wgbh/evolution/ch...

Support for this program is made possible by the Community Foundation of Jackson Hole: Edelweiss Fund.