Column 16. Arga-Sala River (Cambrian of Russian Federation)

Also known as Река Арга-Сала

Where: Yakut, Russian Federation (68.5° N, 112.1° E: paleocoordinates 13.3° S, 3.5° W)

• coordinate based on nearby landmark

When: Agnostus pisiformis - Asaphellus fecundus trilobite zone, Chukukska Formation, Ayusokkanian (499.5 - 497.0 Ma)

• Lower 100 meters of the formation

• member-level stratigraphic resolution

Environment/lithology: ooidal, green, red, silty limestone and calcareous sandstone

• The section is located in the type locality of the formation in the area between the mouths of the Surakh and Tireetekh rivers. It conformably overlies the green-colored formation and facies replaces its upper part. Algal limestones, calcareous sandstones, clastic and oolitic limestones, clayey greenish-gray and red-colored limestones. Thickness about 150 m

Size class: macrofossils

Primary reference: L. N. Repina and A. Y.u. Rozanov. 1992. Кембрии Сибири [Cambrian Siberia]. Российская Академия Наук Сибирское Отделение. Труды Института Геологии И Геофизики [The Russian Academy of Sciences Siberian Division. Proceedings of the Institute of Geology and Geophysics] 788:1-133 [P. Wagner/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 232897: authorized by Pete Wagner, entered by Pete Wagner on 06.01.2024

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Trilobita
 Olenida - Dokimokephalidae
Tchuostachia grandis
Tchuostachia grandis Khramova 1973 trilobite
 Ptychopariida - Plethopeltidae
Plethopeltoides lepidus, Koldinia propria
Koldinia propria trilobite
 Ptychopariida - Alokistocaridae
Pedinocephalina incerta
 Ptychopariida - Lonchocephalidae
Kuraspis obscura
 Lichida - Lichakephalidae
"Acidaspides borealis" = Brutonia borealis
"Acidaspides borealis" = Brutonia borealis Tchernysheva 1960 trilobite
 Corynexochida - Illaenuridae
Olenekella alimbata
Olenekella alimbata Kharmova and Pegel 1985 trilobite