Givetian

System/ Period	Series/ Epoch	Stage/ Age	Age (Ma)
Carboniferous	Mississippian	Tournaisian	recent
Devonian	Late	Famennian	372.2–358.9
	Late	Frasnian	382.7–372.2
	Middle	Givetian	387.7–382.7
	Middle	Eifelian	393.3–387.7
	Early	Emsian	407.6–393.3
		Pragian	410.8–407.6
		Lochkovian	419.2–410.8
Silurian	Pridoli	no faunal stages defined	older
Subdivision of the Devonian system according to the ICS.^[1]

The Givetian is one of two faunal stages in the Middle Devonian period. It lasted from 387.7 million years ago to 382.7 million years ago. It was preceded by the Eifelian stage and followed by the Frasnian stage. It is named after the town of Givet in France.

Name and definition

The Givetian stage was proposed in 1879 by French geologist Jules Gosselet and was accepted for the higher stage of the Middle Devonian by the Subcommission on Devonian Stratigraphy in 1981.^[2]

References

↑ "International Chronostratigraphic Chart". International Commission on Stratigraphy. Retrieved 9 December 2012.
↑ Préat, Alain; Bultynck, Pierre (2006). "Givetian" (PDF). Geologica Belgica. 9 (1-2): 9–18. Retrieved 12 March 2013.

Coordinates: 31°14′15″N 4°21′15″W / 31.2375°N 4.3542°W / 31.2375; -4.3542

Preceded by Proterozoic Eon	Phanerozoic Eon
	Paleozoic Era						Mesozoic Era			Cenozoic Era
	Cambrian	Ordovician	Silurian	Devonian	Carboniferous	Permian	Triassic	Jurassic	Cretaceous	Paleogene	Neogene	4ry

Geologic history of Earth

Cenozoic era
(present–66.0 Mya)

Quaternary (present–2.58 Mya)	Holocene (present–11.7 kya) Pleistocene (11.7 kya–2.58 Mya)

Neogene (2.58–23.03 Mya)	Pliocene (2.58–5.333 Mya) Miocene (5.333–23.03 Mya)

Paleogene (23.03–66.0 Mya)	Oligocene (23.03–33.9 Mya) Eocene (33.9–56.0 Mya) Paleocene (56.0–66.0 Mya)

Mesozoic era
(66.0–252.17 Mya)

Cretaceous (66.0–145.0 Mya)	Late (66.0–100.5 Mya) Early (100.5–145.0 Mya)

Jurassic (145.0–201.3 Mya)	Late (145.0–163.5 Mya) Middle (163.5–174.1 Mya) Early (174.1–201.3 Mya)

Triassic (201.3–252.17 Mya)	Late (201.3–237 Mya) Middle (237–247.2 Mya) Early (247.2–252.17 Mya)

Paleozoic era
(252.17–541.0 Mya)

Permian (252.17–298.9 Mya)	Lopingian (252.17–259.8 Mya) Guadalupian (259.8–272.3 Mya) Cisuralian (272.3–298.9 Mya)

Carboniferous (298.9–358.9 Mya)	Pennsylvanian (298.9–323.2 Mya) Mississippian (323.2–358.9 Mya)

Devonian (358.9–419.2 Mya)	Late (358.9–382.7 Mya) Middle (382.7–393.3 Mya) Early (393.3–419.2 Mya)

Silurian (419.2–443.8 Mya)	Pridoli (419.2–423.0 Mya) Ludlow (423.0–427.4 Mya) Wenlock (427.4–433.4 Mya) Llandovery (433.4–443.8 Mya)

Ordovician (443.8–485.4 Mya)	Late (443.8–458.4 Mya) Middle (458.4–470.0 Mya) Early (470.0–485.4 Mya)

Cambrian (485.4–541.0 Mya)	Furongian (485.4–497 Mya) Series 3 (497–509 Mya) Series 2 (509–521 Mya) Terreneuvian (521–541.0 Mya)

Precambrian supereon
(541.0 Mya–4.567 Gya)

Proterozoic (541.0 Mya–2.5 Gya)	Neoproterozoic (541.0 Mya–1 Gya) Mesoproterozoic (1–1.6 Gya) Paleoproterozoic (1.6–2.5 Gya)

Archean (2.5–4 Gya)	Neoarchean (2.5–2.8 Gya) Mesoarchean (2.8–3.2 Gya) Paleoarchean (3.2–3.6 Gya) Eoarchean (3.6–4 Gya)

Hadean (4–4.567 Gya)	Neohadean (4–4.1 Gya) Mesohadean (4.1–4.3 Gya) Paleohadean (4.3–4.567 Gya)

kya = thousands years ago. Mya = millions years ago. Gya = billions years ago.
Source: (2015/01). International Commission on Stratigraphy. Retrieved 13 July 2015. Divisions of Geologic Time—Major Chronostratigraphic and Geochronologic Units USGS Retrieved 10 March 2013.

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