Lutetium (geology)

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system series step ≈ age ( mya )
higher higher higher younger
Paleogene Oligocene Chattium 23.03
⬍
28.1
Rupelium 28.1
⬍
33.9
Eocene Priobonium 33.9
⬍
38
Bartonium 38
⬍
41.3
lutetium 41.3
⬍
47.8
Ypresium 47.8
⬍
56
Paleocene Thanetium 56
⬍
59.2
Seelandium 59.2
⬍
61.6
Danium 61.6
⬍
66
deeper deeper deeper older

The Lutetium (usually shortened to Lutet in German ) is the second chronostratigraphic stage of the Eocene ( Paleogene ) in the history of the earth . In absolute numbers ( geochronologically ) the stage covers the period from about 47.8 to 41.3 million years. It follows the ypresium and is replaced by the bartonium .

Naming and history

The name is derived from Lutetia , the ancient name of Paris, near which the original type locality is located. Level and name were introduced into literature by Albert de Lapparent in 1883.

Definition and GSSP

The lower limit is defined by the first appearance of the foraminifera genus Hantkenina . The stage ends with the onset of the appearance of the calcareous nannoplankton species Reticulofenestra reticulata . An official type profile (GSSP) has not yet been finally decided. Two of the possible candidate profiles are in Spain.

literature

  • Felix M. Gradstein, Jim Ogg, Jim Smith, Alan Smith (Eds.): A Geologic timescale 2004 . 3rd edition. Cambridge University Press, Cambridge et al. 2004, ISBN 0-521-78673-8 .
  • Albert August Conchon de Lapparent: Traité de Géologie . Savy, Paris 1883.
  • Hans Murawski, Wilhelm Meyer: Geological dictionary . 10th revised and expanded edition. Enke Verlag, Stuttgart 1998, ISBN 3-432-84100-0 ( Enke paperback ).

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