Lower Carboniferous Section, Onon Rivr, eastern Transbaykalia (Carboniferous of Russian Federation)

Where: Russian Federation (51.1° N, 115.6° E: paleocoordinates 53.8° N, 27.2° E)

• coordinate based on political unit

• outcrop-level geographic resolution

When: Visean (346.7 - 330.9 Ma)

• "The brachiopods for determination were gathered from the top half of the strata in question"

• group of beds-level stratigraphic resolution

Environment/lithology: transition zone or lower shoreface; lithified sandstone and lithified phyllite

• "The carboniferous deposits, reaching a total thickness of mare than 100 m, are here represented by alternating sandstone and calcareous argillites, with effusive dikes in the middle and top parts of the column. The top and bottom boundaries of this group are unkown." The term argillite is interpreted as phyllite.

Size class: macrofossils

Preservation: mold/impression

Reposited in the PIN

• "The brachiopods for determination were gathered from the top half of the strata in question. Along with them were found bryozoans, crinoid segments, and corals (syringoporids)."

Primary reference: G. A. Afanas'yeva. 1969. Carboniferous brachiopods from eastern Transbaykalia. Paleontological Journal 3(2):200-206 [N. Heim/N. Heim]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 62639: authorized by Noel Heim, entered by Noel Heim on 24.07.2006

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Strophomenata
 Strophomenida - Chonetidae
? Chonetes ischimicus
Rhynchonellata
 Spiriferida - Ingelarellidae
Tomiopsis plicata
 Spiriferida - Spiriferidae
Spirifer datsanensis n. sp.
 Athyridida - Athyrididae
Composita subquadrata
 Rhynchonellida - Rhynchoporidae
Rhynchopora longa n. sp.
 Orthida - Rhipidomellidae
Rhipidomella altaica
 Spiriferinida - Licharewiidae
Orulgania baikalensis n. sp.