Priabonian Stage

Priabonian Stage

      the uppermost division of Eocene (Eocene Epoch) rocks, representing all rocks deposited worldwide during the Priabonian Age (37.2 million to 33.9 million years ago) of the Paleogene Period (65.5 million to 23 million years ago). The Priabonian Stage is named for Priabona in the Vicenza province of northern Italy.

      The lower boundary of the Priabonian Stage coincides with the first appearance of the calcerous nannoplankton (a single-celled, photosynthetic organism with a shell made up of calcium carbonate plates called coccoliths (coccolith)) Chiasmolithus oamaruensis. The upper boundary matches the extinction level of the foraminiferan (pseudopod-using unicellular organism protected by a test or shell) Turborotalia cerroazulensis. The Priabonian Stage overlies the Bartonian Stage and underlies the Rupelian Stage.

* * *


Universalium. 2010.

Игры ⚽ Нужен реферат?

Look at other dictionaries:

  • Priabonian — The Priabonian (also known as Jacksonian or Runangan) is the final stage of the Eocene Epoch. It spans the time between 37.2 ± 0.1 Ma and 33.9 ± 0.1 Ma (million years ago).ee also* List of fossil sites (with link directory) References *… …   Wikipedia

  • Rupelian Stage — ▪ paleontology       lowermost division of Oligocene (Oligocene Epoch) rocks, representing all rocks deposited worldwide during the Rupelian Age (33.9 million to 28.4 million years ago) of the Paleogene Period (65.5 million to 23 million years… …   Universalium

  • Bartonian Stage — ▪ geology       the third of four divisions (in ascending order) of Eocene (Eocene Epoch) rocks, representing all rocks deposited worldwide during the Bartonian Age (40.4 million to 37.2 million years ago) of the Paleogene Period (65.5 million to …   Universalium

  • Oxfordian (stage) — System Series Stage Age (Ma) Cretaceous Lower Berriasian younger Jurassic Upper Tith …   Wikipedia

  • Eocene Epoch — Major division of the Tertiary Period, from 54. 8 to 33.7 million years ago. It follows the Paleocene Epoch and precedes the Oligocene Epoch. The name, derived from the Greek eos ( dawn ), refers to the dawn of recent life; during the Eocene, all …   Universalium

  • Popigai crater — The Popigai crater in Siberia, Russia is tied with Manicouagan Reservoir as the 4th largest impact crater on Earth.Cite book publisher = Springer pages = 81 85 last = Masaitis first = Victor L. title = Popigai Crater: General Geology date = 2003… …   Wikipedia

  • Chattian — System Series Stage Age (Ma) Neogene Miocene Aquitanian younger Paleogene Oligocene …   Wikipedia

  • Danian — System Series Stage Age (Ma) Neogene Miocene Aquitanian younger Paleogene Oligocene …   Wikipedia

  • Selandian — System Series Stage Age (Ma) Neogene Miocene Aquitanian younger Paleogene Oligocene …   Wikipedia

  • Geology of the North Sea — Contents 1 Tectonic structure 2 Precambrian 3 Finnmarkian, Athollian, Caledonian Orogenies …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”