Baisal, Bed 25 (Permian of Azerbaijan)

Where: Azerbaijan (39.6° N, 45.1° E: paleocoordinates 5.8° S, 40.5° E)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Khachik Formation, Capitanian (264.3 - 259.5 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: lithified, gray, cherty/siliceous limestone and lithified, micaceous sandstone

• Interbedded dark gray, finely crystalline, medium bedded limestone with numerous chert nodules with gray finely crystalline limestone. Micaceous sandstone and argillite interlayers present.

Size class: macrofossils

Primary reference: G. V. Kotlyar, Y.u. D. Zakharov, G. S. Kropatcheva, G. P. Pronina, I. O. Chedija and V. I. Burago. 1989. Evolution of the latest Permian biota: Midian regional stage in the USSR 1-184 [M. Clapham/M. Clapham]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 94942: authorized by Matthew Clapham, entered by Matthew Clapham on 01.04.2010

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Anthozoa
 Stauriida - Waagenophyllidae
"Waagenophyllum indicum" = Waagenophyllum (Waagenophyllum) indicum
"Waagenophyllum indicum" = Waagenophyllum (Waagenophyllum) indicum Waagen and Wentzel 1886 horn coral
Foraminifera
 Lagenina - Ichthyolariidae
Ichthyolaria permotaurica, Lingulonodosaria "sp. 2"
 Lagenina - Partisaniidae
Partisania sp.
 Lagenina -
Langella conica
 Tetrataxoidea - Abadehellidae
Abadehella sp.
Abadehella sp. Okimura and Ishii 1975
 Endothyroidea - Endothyridae
Neoendothyra minuta
 Fusulinina - Pachyphloiidae
Pachyphloia aff. ovata
 Fusulinoidea - Schwagerinidae
Chusenella minuta, Chusenella referta, Chusenella dorashamensis, Chusenella schwagerinaeformis
Chusenella dorashamensis Rosovskaya 1965
 Fusulinoidea - Staffellidae
Kahlerina ex gr. pachytheca, Staffella sp., Nankinella sp., Leella sp., Sphaerulina sp.
Nankinella sp. Lee 1933
Leella sp. Dunbar and Skinner 1937
 Fusulinoidea - Ozawainellidae
Reichelina sp.
Reichelina sp. Erk 1941
 Palaeotextularoidea - Biseriamminidae
Globivalvulina graeca, Globivalvulina "sp. 2", Globivalvulina "sp. 4", Dagmarita chanakchiensis, Paraglobivalvulina gracilis
Globivalvulina "sp. 2" Schubert 1921
Globivalvulina "sp. 4" Schubert 1921
Dagmarita chanakchiensis Reitlinger 1965
Tubothalamea
 Miliolida - Cornuspiridae
Cornuspira ex gr. kinkelini, Hemigordius guvenci, Hemigordius planus
 Miliolida - Hemigordiopsidae
Agathammina rosella, Agathammina bella, Agathammina elongata
 Miliolida - Milioliporidae
Kamurana bronnimanni
 Miliolida - Baisalinidae
Baisalina pulchra, Pseudobaisalina cf. mirifica