Udzhigingol River. Coll. 232 (Cambrian of Kazakhstan)

Where: Kazakhstan (50.2° N, 99.9° E: paleocoordinates 3.5° S, 3.0° E)

When: Dipharus clarki - Margodvscus planus - Bulaiaspis trilobite zone, Egiin Gol Formation, Atdabanian (520.0 - 516.0 Ma)

• member-level stratigraphic resolution

Environment/lithology: black, silty limestone

• The horizon consists of limestone finely and medium-platy, black, fine-grained, in some places clayey with a flat surface layers

Size classes: macrofossils, mesofossils

Primary reference: M. N. Korobov. 1980. Biostratigrafiia i miomernye trilobity nizhnego kembriia Mongolii [Biostratigraphy and miomeroid trilobites from the Lower Cambrian of Mongolia]. Transactions of the Joint Soviet-Mongolian Sciences - Research Geology and Exploration 26:5-108 [P. Wagner/P. Wagner/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 225202: authorized by Pete Wagner, entered by Pete Wagner on 29.04.2022

Creative Commons license: CC BY (attribution)

Taxonomic list

 Agnostida - Yukoniidae
"Margodiscus planus" = Hebediscina, "Margodiscus minutus" = Hebediscina, "Margodiscus blagonravovi n. sp." = Hebediscina blagonravovi
"Margodiscus planus" = Hebediscina
"Margodiscus minutus" = Hebediscina
"Margodiscus blagonravovi n. sp." = Hebediscina blagonravovi Korobov 1980
 Agnostida - Hebediscidae
 Redlichiida - Chengkouaspididae