Karabaglyar Formation

The Karabaglyar Formation is a geologic formation in Armenia and Azerbaijan. It preserves fossils dated to the Changhsingian age of the Permian period and the Induan age of the Triassic period, straddling the Permian-Triassic boundary.^[1]

Karabaglyar Formation
Stratigraphic range: Changhsingian-Induan ~252.3–251.3 Ma PreꞒ Ꞓ O S D C P T J K Pg N ↓
Type	Formation
Lithology
Primary	Limestone
Other	Claystone
Location
Coordinates	39.5°N 45.4°E / 39.5; 45.4
Approximate paleocoordinates	0.3°S 38.8°E / -0.3; 38.8
Region	Transcaucasia
Country	Armenia Azerbaijan
Type section
Named for	Karabaglyar
Karabaglyar Formation (Caucasus Mountains)

Fossil content

The following fossils have been reported from the formation:^[1][2]

Ammonites

• Eumorphotis venetiana
• Meekophiceras dubium
• Ophiceras (Lytophiceras) medium
• Eumorphotis sp.
• Gyronites sp.
• Koninckites sp.
• Kymatites sp.
• Lytophiceras sp.
• Ophiceras sp.

Bivalves

• Claraia aurita
• Claraia clarai
• Claraia stachei
• Claraia wangi
• Claraia sp.

See also

• List of fossiliferous stratigraphic units in Armenia
• List of fossiliferous stratigraphic units in Azerbaijan
• Gnishik Formation
• Permian–Triassic extinction event