|
Search over 100 encyclopedias and dictionaries: |
Research categories | Follow us on Twitter |
Research categories
View all topics in the newsView all reference sources at Encyclopedia.com |
|||
Aquitanian
Aquitanian
1. The earliest age in the Miocene Epoch, preceded by the Chattian (Oligocene), followed by the Burdigalian, and with a lower boundary set at 23.3 Ma ( Harland et al., 1989). 2. The name of the corresponding European stage, which is roughly contemporaneous with the upper Zemorrian and lower Saucesian (N. America), parts of the Otaian (New Zealand), and the upper Janjukian and lower Longfordian (Australia). The stratotype is in the Aquitanian Basin, France. The Aquitanian is itself characterized by the appearance of the planktonic foraminiferid Globigerinoides primordia. |
|
|
Cite this article
AILSA ALLABY and MICHAEL ALLABY. "Aquitanian." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. 27 May. 2012 <http://www.encyclopedia.com>. AILSA ALLABY and MICHAEL ALLABY. "Aquitanian." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. (May 27, 2012). http://www.encyclopedia.com/doc/1O13-Aquitanian.html AILSA ALLABY and MICHAEL ALLABY. "Aquitanian." A Dictionary of Earth Sciences. 1999. Retrieved May 27, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O13-Aquitanian.html |
|
Aquitanian
Aquitanian Defined first from the Aquitanian Basin, France, the Aquitanian Age marks the beginning of the Miocene, 23.03 Ma ago. It also marks the start of the Upper Cenozoic (Neogene) Period of time. The Aquitanian is itself characterized by the appearance of the planktonic foraminiferid Globigerinoides primordia. See FORAMINIFERIDA; GLOBIGERINA; GLOBIGERINA OOZE.
|
|
|
Cite this article
MICHAEL ALLABY. "Aquitanian." A Dictionary of Zoology. 1999. Encyclopedia.com. 27 May. 2012 <http://www.encyclopedia.com>. MICHAEL ALLABY. "Aquitanian." A Dictionary of Zoology. 1999. Encyclopedia.com. (May 27, 2012). http://www.encyclopedia.com/doc/1O8-Aquitanian.html MICHAEL ALLABY. "Aquitanian." A Dictionary of Zoology. 1999. Retrieved May 27, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O8-Aquitanian.html |
|
Aquitanian
Aquitanian Defined first from the Aquitanian Basin, France, the Aquitanian Age marks the beginning of the Miocene, 24.6 Ma ago. It also marks the start of the Upper Cenozoic (Neogene) Period of time. The Aquitanian is itself characterized by the appearance of the planktonic foraminiferid Globigerinoides primordia.
|
|
|
Cite this article
MICHAEL ALLABY. "Aquitanian." A Dictionary of Plant Sciences. 1998. Encyclopedia.com. 27 May. 2012 <http://www.encyclopedia.com>. MICHAEL ALLABY. "Aquitanian." A Dictionary of Plant Sciences. 1998. Encyclopedia.com. (May 27, 2012). http://www.encyclopedia.com/doc/1O7-Aquitanian.html MICHAEL ALLABY. "Aquitanian." A Dictionary of Plant Sciences. 1998. Retrieved May 27, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O7-Aquitanian.html |
|