List of Global Boundary Stratotype Sections and Points
Devonian

List of Global Boundary Stratotype Sections and Points

Section Title: Devonian
Table Section Text: None

Epoch	Stage	Age (mya)	Status	GSSP location	Defining markers	Geographic Coordinates	References

Upper

Famennian	372.2	-	Coumiac quarry, Montagne Noire, France	Biologic: Abundant occurrence of Palmatolepis triangularis (Conodont). Biologic: Upper Kellwasser Extinction of all Ancyrodella and Ozarkodina and most Palmatolepis, Polygnathus, and Ancyrognathus.	43°27′41″N 3°02′25″E / 43.4613°N 3.0403°E

Frasnian	382.7	-	Col du Puech de la Suque, Montagne Noire, France	Biologic: First appearance of Ancyrodella rotundiloba (Conodont).	43°30′12″N 3°05′12″E / 43.5032°N 3.0868°E

Middle

Givetian	387.7	-	Jebel Mech Irdane, Tafilalt, Morocco	Biologic: First appearance of Polygnathus hemiansatus (Conodont). Biologic: Just below first appearance of Maenioceras (Goniatite).	31°14′15″N 4°21′15″W / 31.2374°N 4.3541°W

Eifelian	393.3	-	Wetteldorf Richtschnitt section, Wetteldorf, Eifel, Germany	Biologic: First appearance of Polygnathus costatus partitus (Conodont).	50°08′59″N 6°28′18″E / 50.1496°N 6.4716°E

Lower

Emsian	407.6	-	Zinzil'ban Gorge, Uzbekistan	Biologic: First appearance of Polygnathus kitabicus (Conodont).	39°12′00″N 67°18′20″E / 39.2000°N 67.3056°E

Pragian	410.8	-	Velká Chuchle quarry Velká Chuchle, Prague, Czech Republic	Biologic: First appearance of Eognathodus sulcatus (Conodont).	50°00′53″N 14°22′21″E / 50.0147°N 14.3726°E

Lochkovian	419.2	-	Klonk, Prague, Czech Republic	Biologic: First appearance of Monograptus uniformis (graptolite).	49°51′18″N 13°47′31″E / 49.8550°N 13.7920°E

Sentence(s)

The Famennian (372.2 mya) is a GSSP located at Coumiac quarry, Montagne Noire, France where there is an biologic abundant occurrence of Palmatolepis triangularis.

final_sentence: The Famennian (372.2 mya) is a GSSP located at Coumiac quarry, Montagne Noire, France where there is an biologic abundant occurrence of Palmatolepis triangularis.