Srednyaya Mountain, Batenevskiy Ridge, section I, units 4-5 (Cambrian of Russian Federation)

Also known as Reef 3778

Where: Khakasiya, Russian Federation (54.2° N, 90.8° E: paleocoordinates 9.6° S, 6.2° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Usa Formation, Atdabanian (520.0 - 516.0 Ma)

• sample C-70, C-71, 53 m thick, Kameshki stage

• group of beds-level stratigraphic resolution

Environment/lithology: reef, buildup or bioherm; lithified limestone

• small calcimicrobial-archaeocyathan biostromes and interbiostromal beds

Size class: macrofossils

Collection methods: peel or thin section,

Primary reference: D. V. Osadchaya, L. N. Kashina, I. T. Zhuravleva and N. P. Borodina. 1979. Stratigrafiya i arkheotsiaty nizhnego kembriya Altaye-Sayanskoy skladchatoy oblasti [Lower Cambrian stratigraphy and archaeocyatha of the Altay-Sayan fold belt]. Trudy Instituta Geologii i Geofiziki, Sibirskoye Otdeleniye 380:1-215 [W. Kiessling/U. Merkel]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 81328: authorized by Wolfgang Kiessling, entered by Uta Merkel on 20.06.2008

Creative Commons license: CC BY (attribution)

Taxonomic list

Archaeocyatha
 Archaeocyathida - Loculicyathidae
"Robustocyathus sp." = Cambrocyathellus
"Robustocyathus sp." = Cambrocyathellus archaeocyath sponge
 Monocyathida - Monocyathidae
Archaeolynthus sibiricus archaeocyath sponge
 Monocyathida - Tumuliolynthidae
Tumuliolynthus tubexternus archaeocyath sponge
 Ajacicyathida - Densocyathidae
Leptosocyathellus mirandus n. gen. n. sp. Osadchaya et al. 1979 archaeocyath sponge
Leptosocyathus sp. archaeocyath sponge
 Ajacicyathida - Ethmocyathidae
Baikalocyathus rossicus archaeocyath sponge
 Ajacicyathida - Ajacicyathidae
"Aldanocyathus sp." = Nochoroicyathus
"Aldanocyathus sp." = Nochoroicyathus Zhuravleva 1951 archaeocyath sponge
 Ajacicyathida - Jakutocarinidae
? Russocyathus sp. archaeocyath sponge
 Capsulocyathida - Coscinocyathidae
Coscinocyathus sp. Bornemann 1884 archaeocyath sponge
Trilobita
 Redlichiida - Palaeolenidae
? Alataurus sp. Repina 1964 trilobite
 Redlichiida - Ellipsocephalidae
 Redlichiida - Chengkouaspididae
Bulaiaspis tassevica, "Inella ocularia" = Repinainella, "Inella monstrobilica" = Repinainella
Bulaiaspis tassevica trilobite
subsp. batenica
"Inella ocularia" = Repinainella trilobite
"Inella monstrobilica" = Repinainella trilobite
 Redlichiida - Redlichinidae
  - Aldonaiidae
 Corynexochida - Dinesidae
 Corynexochida - Dorypygidae
Bonnia sp. Walcott 1916 trilobite
Protypus carus trilobite
 Corynexochida - Edelsteinaspididae
Artiopoda
 Agnostida - Hebediscidae
"Hebediscus lermontovae" = Dipharus, "Hebediscus erbaensis" = Dipharus, "Hebediscus flexus" = Dipharus
"Hebediscus lermontovae" = Dipharus
"Hebediscus erbaensis" = Dipharus
"Hebediscus flexus" = Dipharus