PBDB Collection

Baisal, Bed 21 (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 to gray mottled, fine-grained, locally silicified limestone with micaceous sandstone or sandy-calcareous aleurolites (mudstone)

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 94941: 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

Foraminifera
-	Pseudovidalina sp. Pseudovidalina sp.
Lagenina - Partisaniidae	Partisania sp. Partisania sp.
Tubothalamea
Miliolida - Milioliporidae	Kamurana bronnimanni Kamurana bronnimanni
Miliolida - Hemigordiopsidae	Agathammina rosella, Agathammina bella Agathammina rosella Agathammina bella
Miliolida - Cornuspiridae	Cornuspira ex gr. kinkelini, Hemigordius "sp. 1" Cornuspira ex gr. kinkelini Hemigordius "sp. 1" Schubert 1908
Miliolida - Baisalinidae	Pseudobaisalina cf. mirifica, Baisalina pulchra Pseudobaisalina cf. mirifica Baisalina pulchra
Foraminifera
Fusulinoidea - Staffellidae	Staffella sp., Nankinella sp. Staffella sp. Nankinella sp. Lee 1933
Endothyroidea - Endothyridae	Neoendothyra minuta Neoendothyra minuta
Palaeotextularoidea - Palaeotextulariidae	Climacammina aff. rara Climacammina aff. rara
Palaeotextularoidea - Biseriamminidae	Paraglobivalvulina mira, Globivalvulina vonderschmitti Paraglobivalvulina mira Globivalvulina vonderschmitti
Fusulinina - Geinitzinidae	Geinitzina postcarbonica Geinitzina postcarbonica Spandel 1901
Fusulinina - Pachyphloiidae	Pachyphloia aff. ovata Pachyphloia aff. ovata Lange 1925
Strophomenata
Productida - Aulostegidae	Chonostegoides baissalensis Chonostegoides baissalensis Sarycheva 1965
Productida -	Marginifera magniplicata Marginifera magniplicata Huang 1932
Rhynchonellata
Athyridida - Athyrididae	Septospirigerella applanata, Septospirigerella baissalensis Septospirigerella applanata Grunt 1986 Septospirigerella baissalensis Grunt 1965
Orthida - Schizophoriidae	Acosarina sp. Acosarina sp. Cooper and Grant 1969