Serravallian

Serravallian
13.82 – 11.63 Ma
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Chronology
Formerly part ofTertiary Period/System
Etymology
Geochronological nameFormal
Usage information
Celestial bodyEarth
Regional usageGlobal (ICS)
Time scale(s) usedICS Time Scale
Definition
Chronological unitAge
Stratigraphic unitStage
Time span formalityFormal
Lower boundary definitionMi3b Oxygen-isotopic event (Global cooling episode)
Lower boundary GSSPRas il Pellegrin section, Fomm ir-Riħ Bay, Malta
35°54′50″N 14°20′10″E / 35.9139°N 14.3361°E / 35.9139; 14.3361
Lower GSSP ratified2007[4]
Upper boundary definitionLAD of the Haptophyte Discoaster kugleri
Upper boundary GSSPMonte dei Corvi Beach section, Ancona, Italy
43°35′12″N 13°34′10″E / 43.5867°N 13.5694°E / 43.5867; 13.5694
Upper GSSP ratified2003[5]

The Serravallian is, in the geologic timescale, an age or a stage in the middle Miocene Epoch/Series, which spans the time between 13.82 Ma and 11.63 Ma (million years ago). The Serravallian follows the Langhian and is followed by the Tortonian.[6]

It overlaps with the middle of the Astaracian European Land Mammal Mega Zone, the upper Barstovian and lower Clarendonian North American Land Mammal Ages and the Laventan and lower Mayoan South American Land Mammal Ages. It is also coeval with the Sarmatian and upper Badenian Stages of the Paratethys time scale of Central and eastern Europe.

  1. ^ Krijgsman, W.; Garcés, M.; Langereis, C. G.; Daams, R.; Van Dam, J.; Van Der Meulen, A. J.; Agustí, J.; Cabrera, L. (1996). "A new chronology for the middle to late Miocene continental record in Spain". Earth and Planetary Science Letters. 142 (3–4): 367–380. Bibcode:1996E&PSL.142..367K. doi:10.1016/0012-821X(96)00109-4.
  2. ^ Retallack, G. J. (1997). "Neogene Expansion of the North American Prairie". PALAIOS. 12 (4): 380–390. doi:10.2307/3515337. JSTOR 3515337. Retrieved 2008-02-11.
  3. ^ "ICS Timescale Chart" (PDF). www.stratigraphy.org.
  4. ^ Hilgen, F. J.; H. A. Abels; S. Iaccarino; W. Krijgsman; I. Raffi; R. Sprovieri; E. Turco; W. J. Zachariasse (2009). "The Global Stratotype Section and Point (GSSP) of the Serravallian Stage (Middle Miocene)" (PDF). Episodes. 32 (3): 152–166. doi:10.18814/epiiugs/2009/v32i3/002. Retrieved 26 December 2020.
  5. ^ Hilgen, F. J.; Hayfaa Abdul Aziz; Bice, David; Iaccarino, Silvia; Krijgsman, Wout; Kuiper, Klaudia; Montanari, Alessandro; Raffi, Isabella; Turco, Elena; Willem-Jan Zachariasse (2005). "The Global boundary Stratotype Section and Point (GSSP) of the Tortonian Stage (Upper Miocene) at Monte Dei Corvi" (PDF). Episodes. 28 (1): 6–17. doi:10.18814/epiiugs/2005/v28i1/001. Retrieved 26 December 2020.
  6. ^ Gradstein et al. (2004)