Nikitina Balka, blocks in left tributary, north Caucasus (Permian of Russian Federation)

Where: Russian Federation (44.0° N, 40.7° E: paleocoordinates 14.2° S, 55.7° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Changhsingian (254.2 - 252.2 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified lithology not reported

Size class: macrofossils

Primary reference: B. Licharew. 1937. Brachiopoda of the Permian system of USSR, Fasc. I. Permian Brachiopoda of north Caucasus, families Chonetidae Hall et Clarke and Productidae Gray. Paleontology of USSR Monographs 39:1-151 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 127917: authorized by Matthew Clapham, entered by Matthew Clapham on 27.05.2012

Creative Commons license: CC BY (attribution)

Taxonomic list

Strophomenata
 Productida -
"Productus (Marginifera) lopingensiformis" = Spinomarginifera lopingensiformis
"Productus (Marginifera) lopingensiformis" = Spinomarginifera lopingensiformis Licharew 1937
coll. V. Robinson P2a