Section 223. Obn. 223-10-5. District Kyzm-Tashtygskogo (Cambrian of Russian Federation)

Where: Tuva, Russian Federation (52.1° N, 96.1° E: paleocoordinates 6.2° S, 4.4° E)

When: Nochoroicyathus – Dokidocyathus subregularis other zone, Tummattaygin Formation, Atdabanian (521.0 - 516.0 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: reef, buildup or bioherm; gray, red, cherty/siliceous limestone

• Andesite-basalt massive, light green color, with rare black inclusions, agglomerate lava of andesite-basalt composition with angular fragments of pinkish and dark gray siliceous, limestone thick layer

Size classes: macrofossils, mesofossils

Primary reference: D. V. Osadchaya, D. A. Tokarev, D.V. Kotelnikov and I. V. Korovnikov. 2021. Археоциаты атдабанского яруса нижнего кембрия Центральной Тывы [Atdabanian Archeocyaths from Lower Cambrian of the Central part of Tuva]. Рос. акад. наук, Сиб. отд-ние, Ин-т нефтегазовой геологии и геофизики им. [Trofimuk Institute of Petroleum Geology and Geophysics of Siberian Branch Russian Academy of Sciences] 21:1-169 [P. Wagner/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 232977: authorized by Pete Wagner, entered by Pete Wagner on 09.01.2024

Creative Commons license: CC BY (attribution)

Taxonomic list

Archaeocyatha
 Ajacicyathida - Dokidocyathidae
Dokidocyathus bogradiensis Osadchaya et al. 1979 archaeocyath sponge
 Ajacicyathida - Asterocyathidae
Asterocyathus densus Vologdin 1940 archaeocyath sponge