Where: Ukraine (48.0° N, 38.2° E: paleocoordinates 4.8° N, 32.1° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Bashkirian (323.2 - 315.2 Ma)

• Middle Carboniferous, C4-2 Svita. C4-2 is the Bilokalytvenka suite, belonging to the Kayalian regional stage and Krasnodonian regional substage (horizon) of the upper Bashkirian.

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified lithology not reported

Size class: macrofossils

Collection methods: Repository: Kruglov's holotype not found, according to Shimansky 1967

Primary reference: V. N. Shimanskiy. 1967. Kammenougol'nye Nautilida. Akademiya Nauk SSSR, Trudy Paleontologicheskogo Instituta 115:1-258 [M. Clapham/M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 166289: authorized by Matthew Clapham, entered by Matthew Clapham on 08.02.2015

Creative Commons license: CC BY (attribution)