Piacenzian

A Dictionary of Earth Sciences | 1999 | 574 words | Copyright

Piacenzian
1.. The final age in the Pliocene Epoch, preceded by the Zanclian (Tabianian), followed by the Calabrian (Quaternary), and dated at 3.4–1.64 Ma ( Harland et al., 1989).

2.. The name of the corresponding European stage which was originally described as a subdivision of the (then recognized) Astian Stage. It is roughly contemporaneous with the upper Delmontian, Repettian, and Venturan (N. America), Waipipian, Mangapanian, and lowermost Nukumaruan (New Zealand), and upper Kalimnan and Yatalan (Australia). The type area is around Castell' Arquato, Italy.

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AILSA ALLABY and MICHAEL ALLABY. "Piacenzian." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. 28 May. 2012 <http://www.encyclopedia.com>.

AILSA ALLABY and MICHAEL ALLABY. "Piacenzian." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. (May 28, 2012). http://www.encyclopedia.com/doc/1O13-Piacenzian.html

AILSA ALLABY and MICHAEL ALLABY. "Piacenzian." A Dictionary of Earth Sciences. 1999. Retrieved May 28, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O13-Piacenzian.html

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