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Bathornithids, which were similar in ecology and are likely close relatives of phorusrhacids, existed entirely within North America during part of the Cenozoic and competed successfully for a time with large carnivorans such as nimravids, [17] before becoming extinct in the Early Miocene, about 20 million years ago.
The Cenozoic is just as much the age of savannas, the age of co-dependent flowering plants and insects, and the age of birds. [40] Grasses also played a very important role in this era, shaping the evolution of the birds and mammals that fed on them. One group that diversified significantly in the Cenozoic as well were the snakes.
Since the 19th century, a significant amount of research has been conducted on the Cretaceous–Paleogene extinction event, the mass extinction that ended the dinosaur-dominated Mesozoic Era and set the stage for the Age of Mammals, or Cenozoic Era. A chronology of this research is presented here.
c. 4,300 Ma – Nectarian Era begins on Earth. c. 4,250 Ma – Earliest evidence for life, based on unusually high amounts of light isotopes of carbon, a common sign of life, found in Earth's oldest mineral deposits located in the Jack Hills of Western Australia. [4] c. 4,100 Ma – Early Imbrian Era begins on Earth.
It is the second and most recent epoch of the Neogene Period in the Cenozoic Era. ... 100+ images of Pliocene Foraminifera; Human Timeline (Interactive) ...
Beasts tracks animal life, particularly the rise of the mammals to dominance, in the Cenozoic era. The series also gives some insight into human evolution, with an episode devoted to Australopithecus and appearances by both Neanderthals and anatomically modern humans.
The Late Cenozoic Ice Age falls within the Cenozoic Era which started 66 million years ago. The Cenozoic Era is part of the Phanerozoic Eon which started ~538.8 million years ago. ^ a b In standard nomenclature the Pleistocene Epoch lasts from 2.58 Ma to 11.7 ka and the Holocene epoch lasts from 11.7 ka to present.
An approximate timescale of key Cenozoic events. Vertical axis scale: Millions of years ago This page was last edited on 9 December 2024, at 05:53 (UTC). Text ...