Rulon Creek 11-1, Munugudzhak River, Omolon Basin (Permian of Russian Federation)

Where: Russian Federation (63.8° N, 159.9° E: paleocoordinates 61.0° N, 13.3° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Munugudzhak Formation, Artinskian (290.1 - 279.3 Ma)

• 3 m thick. Jakutoproductus terekhovi-Cypricardinia eopermica zone

• group of beds-level stratigraphic resolution

Environment/lithology: coastal; lithified, fine-grained, medium, phosphatic, gray, green, calcareous sandstone

• Greenish and reddish-gray, fine- and medium-grained, medium- and thickly bedded, frequently calcareous and phosphatic sandstone

Size class: macrofossils

Preservation: mold/impression

Primary reference: A. S. Biakov. 2005. New species of astartids and pholadomyids (Bivalvia) and beds with fauna from the Lower Permian of the Omolon Massif, northeastern Asia. Paleontological Journal 39(2):133-140 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 102161: authorized by Matthew Clapham, entered by Matthew Clapham on 10.01.2011

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Bivalvia
 Cardiidia - Sanguinolitidae
"Dulunomya aff. abramovi" = Wilkingia, Myofossa subarbitrata
"Dulunomya aff. abramovi" = Wilkingia clam
Myofossa subarbitrata Dickins 1963 clam
 Modiomorphida - Cypricardiniidae
Cypricardinia eopermica n. sp.
Cypricardinia eopermica n. sp. Biakov 2005 clam
 Pholadomyida - Edmondiidae
Edmondia cf. pricardi
 Carditida - Astartidae
Astartella permocarbonica, Astartella cf. omolonica
Astartella permocarbonica Tschernyschew 1885 clam
Astartella cf. omolonica Muromtseva 1984 clam
 Trigoniida - Schizodidae
Schizodus cf. sandimanensis, Schizodus aff. tschernjaki
Schizodus cf. sandimanensis Dickins 1963 clam
Schizodus aff. tschernjaki Muromtseva 1974 clam
 Pectinida - Streblochondriidae
Streblopteria "sp. nov.", Streblopteria ex gr. krasnoufimskensis
Streblopteria "sp. nov." McCoy 1851 scallop
 Pectinida - Heteropectinidae
"? Vorkutopecten subclathratus" = Neptunopecten subclathratus
"? Vorkutopecten subclathratus" = Neptunopecten subclathratus Keyserling 1846 scallop
 Nuculanida - Polidevciidae
Polidevcia cf. kolyvanica
Polidevcia cf. kolyvanica Muromtseva 1974 clam
Cephalopoda
 Goniatitida - Paragastrioceratidae
Uraloceras omolonense n. sp., Uraloceras kolymense n. sp.
Uraloceras omolonense n. sp. Bogoslovskaya and Boiko 2002 ammonite
Uraloceras kolymense n. sp. Bogoslovskaya and Boiko 2002 ammonite
Rhynchonellata
 Spiriferida - Spiriferellidae
Spiriferella burgaliensis
Spiriferella burgaliensis Zavodowsky 1968
 Spiriferida - Trigonotretidae
"Neospirifer aff. kedonensis" = Fusispirifer kedonensis, Neospirifer fasciger
"Neospirifer aff. kedonensis" = Fusispirifer kedonensis Einor 1959
Neospirifer fasciger Keyserling 1846
Strophomenata
 Productida - Productellidae
Jakutoproductus terekhovi
 Productida - Monticuliferidae
Costatumulus ex gr. alazeica