List of Global Boundary Stratotype Sections and Points
Triassic

List of Global Boundary Stratotype Sections and Points

Section Title: Triassic
Table Section Text: None

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

Upper

Rhaetian	208.5	Candidate sections: Steinbergkogel, Austria Turkey British Columbia	Biologic: Near first appearance of genus Cochloceras (Ammonite). Biologic: Near first appearance of Misikella sp.

Norian	227	Candidate sections: Black Bear Ridge, British Columbia Pizzo Mondello, Sicily	Base of Stikinoceras kerri ammonoid zone and near FAD of Metapolygnathus echinatus within the M. communisti conodont zones.

Carnian	237	-	Prati di Stuores, Dolomites, Italy	Biologic: First appearance of Daxatina canadensis (Ammonite). Biologic: Near first appearance of Metapolygnathus polygnathiformis (Conodont). Magnetic: Above magnetic zone S2n.	46°31′37″N 11°55′49″E / 46.5269°N 11.9303°E

Middle

Ladinian	242	-	Bagolino, Lombardian pre-Alps, Italy	Biologic: First appearance of Eoprotrachyceras curionii (Ammonite). Biologic: First appearance of Budurovignathus praehungaricus (Conodont).	45°49′09″N 10°28′16″E / 45.8193°N 10.4710°E

Anisian	247.2	Candidate sections: Desli Caira, Northern Dobruja, Romania Guandao, Guizhou, China	Biologic: First appearance of Chiosella timorensis (Conodont). Magnetic: Base of magnetic zone MT1n.	45°04′27″N 28°48′08″E / 45.0742°N 28.8022°E

Lower

Olenekian	251.2	Candidate sections: Mud (Muth) village, Spiti valley, India Chaohu, China	Biologic: First appearance of Neospathodus waageni (Conodont). Biologic: Near first appearance of genera Flemingites and Euflemingites (Ammonite).	31°57′55″N 78°01′29″E / 31.9654°N 78.0246°E

Induan	251.902	-	Meishan, Zhejiang, China	Biologic: First appearance of Hindeodus parvus (Conodont).	31°04′47″N 119°42′21″E / 31.0798°N 119.7058°E

Sentence(s)

The First Appearance of Hindeodus parvus was the defining marker for the Induan, the first stage of the Triassic.

final_sentence: The First Appearance of Hindeodus parvus was the defining marker for the Induan, the first stage of the Triassic.