Silesian (series)

System	Series (NW Europe)	Stage (NW Europe)	Series (ICS)	Stage (ICS)	Age (Ma)
Permian					younger
Carboniferous	Silesian	Stephanian	Pennsylvanian	Gzhelian	298.9–303.7
		Westphalian		Kasimovian	303.7–307.0
				Moscovian	307.0–315.2
				Bashkirian	315.2–323.2
		Namurian		Bashkirian	315.2–323.2
		Namurian	Mississippian	Serpukhovian	323.2–330.9
	Dinantian	Visean		Visean	330.9–346.7
	Dinantian	Tournaisian		Tournaisian	346.7–358.9
Devonian					older
Subdivisions of the Carboniferous system in Europe compared with the official ICS-stages (as of 2018)

The Silesian is in the geologic timescale of Europe a series or epoch, a subdivision of the Carboniferous system or period.

It was named for Silesia, a region that stretches over the Czech Republic, Poland and Germany.

Geology

It follows or lies on top of the Dinantian epoch/series and lasted from roughly 326.4 to 299.0 Ma ago.

The base of the Silesian is undefined, the top is defined by the first appearance of the conodont Streptognathodus isolatus.

The Silesian is subdivided into three stages, from young (upper) to old (lower):

Quaternary (present–2.588 Mya)	Holocene (present–11.784 kya) Pleistocene (11.784 kya–2.588 Mya)
Neogene (2.588–23.03 Mya)	Pliocene (2.588–5.333 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)

Permian (251.902–298.9 Mya)	Lopingian (251.902–259.8 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) Miaolingian (497–509 Mya) Series 2 (509–521 Mya) Terreneuvian (521–541.0 Mya)

Neoproterozoic era (541.0 Mya–1 Gya)	Ediacaran (541.0–~635 Mya) Cryogenian (~635–~720 Mya) Tonian (~720 Mya–1 Gya)
Mesoproterozoic era (1–1.6 Gya)	Stenian (1–1.2 Gya) Ectasian (1.2–1.4 Gya) Calymmian (1.4–1.6 Gya)
Paleoproterozoic era (1.6–2.5 Gya)	Statherian (1.6–1.8 Gya) Orosirian (1.8–2.05 Gya) Rhyacian (2.05–2.3 Gya) Siderian (2.3–2.5 Gya)

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

kya = thousands years ago. Mya = millions years ago. Gya = billions years ago.

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