- published: 02 Feb 2010
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The Pliocene (/ˈplaɪəˌsiːn/; also Pleiocene) Epoch (symbol PO) is the epoch in the geologic timescale that extends from 5.333 million to 2.58 million years BP. It is the second and youngest epoch of the Neogene Period in the Cenozoic Era. The Pliocene follows the Miocene Epoch and is followed by the Pleistocene Epoch. Prior to the 2009 revision of the geologic time scale, which placed the four most recent major glaciations entirely within the Pleistocene, the Pliocene also included the Gelasian stage, which lasted from 2.588 to 1.806 million years ago, and is now included in the Pleistocene.
As with other older geologic periods, the geological strata that define the start and end are well identified but the exact dates of the start and end of the epoch are slightly uncertain. The boundaries defining the Pliocene are not set at an easily identified worldwide event but rather at regional boundaries between the warmer Miocene and the relatively cooler Pliocene. The upper boundary was set at the start of the Pleistocene glaciations.
This video from the Museum's Florida Fossils exhibit describes the Pliocene Epoch, 5 million to 2 million years ago The formation of a land bridge across Panama in Central America about 3 million years ago was a major biotic event. Both North and South America had been previously isolated for millions of years. Each had evolved its own unique flora and fauna. Contact between North and South America allowed for the overland dispersal of organisms between the two continents. Mammals living in North America invaded South America, and South American mammals moved north. The closure of the seaway between North and South America apparently resulted in extinctions of many marine organisms. However, newly formed habitats also promoted the evolution of many new species. Produced, directed a...
Title: "Our Pliocene Ancestors" Speaker: Yohannes Haile-Selassie, PhD Location: campus, Case Western Reserve University, Cleveland, Ohio Date: May 7, 2014
Australia was more heavily forested during the Pliocene, around 3 million years ago. What did that forest look and sound like? You can get a rough sense by visiting the forest at Noah Creek in Australia's Daintree Rainforest.
A huge pool of warm water that spanned the Tropics four million years ago suggests climate models might be too conservative in forecasting tropical changes. Dr Chris Brierley (UCL Geography), a co-author of the paper published in Nature, explains that this giant mass of water would have dramatically altered rainfall in the tropics. Its decay and the consequential drying of East Africa may have been a factor in Hominid evolution. With green house gases accelerating climate change, Dr Brierley says we cannot rule out such a future for the world with the return of uniformly warm seas in the Tropics. Further info: Read the paper here - http://dx.doi.org/10.1038/nature12003 http://www.geog.ucl.ac.uk/about-the-department/people/academics/academic-staff/chris-brierley http://www.nature.com Fo...
The Hagerman Fossil Beds National Monument is spread out and involves a scenic drive with views of the Snake River and Oregon trails. Each site has information boards that share the rich and unique history with visitors. The Visitor Center displays an exhibit of the Hagerman Horse and other species of animals also found in the park. You will also find literature of the park, a map for a self-guided tour, information on the Jr. Ranger program, and much more. Join us here in Southern Idaho and catch a glimpse of the Pliocene Epoch as it transitioned into the Pleistocene Epoch.
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The Pliocene Epoch is the period in the geologic timescale that extends from 5.333 million to 2.58 million years BP. It is the second and youngest epoch of the Neogene Period in the Cenozoic Era. The Pliocene follows the Miocene Epoch and is followed by the Pleistocene Epoch. Prior to the 2009 revision of the geologic time scale, which placed the 4 most recent major glaciations entirely within the Pleistocene, the Pliocene also included the Gelasian stage, which lasted from 2.588 to 1.806 million years ago, and is now included in the Pleistocene. As with other older geologic periods, the geological strata that define the start and end are well identified but the exact dates of the start and end of the epoch are slightly uncertain. The boundaries defining the Pliocene are not set at an easi...
The Pliocene epoch (5.33-2.59 Myrs) was the last sustained interval when global climate was significantly warmer than today. As such it is considered a good potential analogue for the conditions predicted for the end of this century due to anthropogenic climate change. However, the precise dynamics of the climate system as well as the causes of the termination of the Pliocene warmth and the onset of Quaternary climate are still poorly understood. Following the successful first workshop on Pliocene climate in Bordeaux in 2009, the second workshop on Pliocene climate was held in Bristol (UK) on Monday 9 - Tuesday 10 September 2013 (http://www.bristol.ac.uk/cabot/events/2013/273.html). Organized by the University of Bristol and the Cabot Institute, the workshop brought together 80 internation...
Nel periodo del pliocene che varia da 1800000 a 5330000 anni fa,c'era un caldo mare tropicale popolato da: una moltitudine di squali,balene e conchiglie dalle forme più svariate,nel corso dei millenni un ritiro del mare insieme ad un sollevamento delle terre hanno permesso di riportare ai giorni nostri ciò che resta degli organismi vissuti in quell'epoca.
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