Search results
Results from the WOW.Com Content Network
The Eocene (IPA: / ˈ iː ə s iː n, ˈ iː oʊ-/ EE-ə-seen, EE-oh-[5] [6]) is a geological epoch that lasted from about 56 to 33.9 million years ago (Ma). It is the second epoch of the Paleogene Period in the modern Cenozoic Era.
The various fossil beds of the Green River Formation span a 5 million year period, dating to between 53.5 and 48.5 million years old. [8] This span of time includes the transition between the moist early Eocene climate and the slightly drier mid-Eocene.
Eocene New Zealand Bortons: Hornibrook, 1961 Botomian: 524 518.5 age Cambrian Russia, Kazakhstan Repina, 1964 Bramertonian ~2.12 ~2.0 age Pleistocene Great Britain Bramerton Pits (England) Funnell, Norton, West and Mayhew, 1979 Bridgerian: 50.3 46.2 age Eocene North America Wood et al., 1941 Brigantian: 336 326.4 ± 1.6 age Carboniferous
The hottest part of the last greenhouse earth was the Late Paleocene - Early Eocene. This was a hothouse period that lasted from 65 to 55 million years ago. The hottest part of this torrid age was the Paleocene–Eocene Thermal Maximum, 55.5 million years ago. Average global temperatures were around 30 °C (86 °F). [14]
The Eocene–Oligocene extinction event, also called the Eocene-Oligocene transition (EOT) or Grande Coupure (French for "great cut"), is the transition between the end of the Eocene and the beginning of the Oligocene, an extinction event and faunal turnover occurring between 33.9 and 33.4 million years ago. [1]
A 30 million-year-old nearly complete skull fossil found in Egypt has revealed a new species of hyaenodonta, an ancient apex carnivore. ... The Eocene-Oligocene boundary was a global cooling event ...
The Priabonian is, in the ICS's geologic timescale, the latest age or the upper stage of the Eocene Epoch or Series. It spans the time between 37.71 and 33.9 Ma . The Priabonian is preceded by the Bartonian and is followed by the Rupelian , the lowest stage of the Oligocene .
c. 33.9 Ma – End of Eocene, start of Oligocene epoch. c. 35 Ma – Grasslands first appear. Glyptodonts, ground sloths, peccaries, dogs, eagles, and hawks evolve. c. 33 Ma – First thylacinid marsupials evolve. c. 30 Ma – Brontotheres go extinct. Pigs evolve. South America separates from Antarctica, becoming an island continent.