Krutoy Log, Sukhie Solontsy bioherm, Batenevskiy Ridge, unit 2 (Cambrian of Russian Federation)

Also known as Reef 3774

Where: Khakasiya, Russian Federation (54.0° N, 90.8° E: paleocoordinates 9.4° S, 6.3° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Usa Formation, Atdabanian (521.0 - 516.0 Ma)

• sample 5101:S4-11, 26 m thick, Bazaikha stage

• group of beds-level stratigraphic resolution

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

• small calcimicrobial and calcimicrobial-archaeocyathan bioherms and biostromes and interbiohermal limestones

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 81310: authorized by Wolfgang Kiessling, entered by Uta Merkel on 19.06.2008

Creative Commons license: CC BY (attribution)

Taxonomic list

  - Chabakoviacea
Renalcis sp. Vologdin 1932
  - Ludloviaceae
Epiphyton sp. Bornemann 1886
 Ajacicyathida - Dokidocyathidae
Dokidocyathus bogradiensis n. sp. Osadchaya et al. 1979 archaeocyath sponge
 Ajacicyathida - Ethmocyathidae
Degeletticyathus lebedevae archaeocyath sponge
Baikalocyathus sp. archaeocyath sponge
 Ajacicyathida - Sajanocyathidae
Irinaecyathus subjadwigae archaeocyath sponge
 Ajacicyathida - Ajacicyathidae
"Nochoroicyathus mariinskii" = Nochoroicyathus, "Aldanocyathus amplus" = Nochoroicyathus, "Aldanocyathus speranskii" = Nochoroicyathus, "Aldanocyathus certus" = Nochoroicyathus, "Aldanocyathus chassactuensis" = Nochoroicyathus, "Aldanocyathus difformis" = Nochoroicyathus, Nochoroicyathus fragilis, Nochoroicyathus diadromus, "Nochoroicyathellus activus" = Stapicyathus activus, Ajacicyathus shoricus, Orbicyathus kundatus
"Nochoroicyathus mariinskii" = Nochoroicyathus archaeocyath sponge
"Aldanocyathus amplus" = Nochoroicyathus archaeocyath sponge
"Aldanocyathus speranskii" = Nochoroicyathus archaeocyath sponge
"Aldanocyathus certus" = Nochoroicyathus archaeocyath sponge
"Aldanocyathus chassactuensis" = Nochoroicyathus archaeocyath sponge
"Aldanocyathus difformis" = Nochoroicyathus archaeocyath sponge
Nochoroicyathus fragilis Osadchaya et al. 1979 archaeocyath sponge
Nochoroicyathus diadromus Osadchaya et al. 1979 archaeocyath sponge
"Nochoroicyathellus activus" = Stapicyathus activus Osadchaya et al. 1979 archaeocyath sponge
Ajacicyathus shoricus archaeocyath sponge
Orbicyathus kundatus archaeocyath sponge
 Ajacicyathida - Tumulocyathidae
Tumulocyathus pustulatus, "Tumulocyathellus ex gr. platiseptatus" = Plicocyathus
Tumulocyathus pustulatus archaeocyath sponge
"Tumulocyathellus ex gr. platiseptatus" = Plicocyathus archaeocyath sponge
 Ajacicyathida - Pretiosocyathidae
"Pretiosocyathellus toltschiensis n. gen. n. sp." = Pretiosocyathus toltschiensis
"Pretiosocyathellus toltschiensis n. gen. n. sp." = Pretiosocyathus toltschiensis Osadchaya et al. 1979 archaeocyath sponge
 Archaeocyathida - Loculicyathidae
"Cambrocyathellus sp." = Cambrocyathellus, "Robustocyathus neiburgianus" = Cambrocyathellus, "Robustocyathus ijizkii" = Cambrocyathellus
"Cambrocyathellus sp." = Cambrocyathellus archaeocyath sponge
"Robustocyathus neiburgianus" = Cambrocyathellus archaeocyath sponge
"Robustocyathus ijizkii" = Cambrocyathellus archaeocyath sponge
 Archaeocyathida -
Sphinctocyathus radiatus archaeocyath sponge
 Archaeocyathida - Copleicyathidae
Tabulacyathellus bidzjaensis archaeocyath sponge
 Archaeocyathida - Dictyocyathidae
Dictyocyathus tenuis archaeocyath sponge
 Archaeocyathida - Archaeopharetridae
Protopharetra grandicaveata archaeocyath sponge
 Monocyathida - Monocyathidae
Archaeolynthus sibiricus archaeocyath sponge
 Monocyathida - Tumuliolynthidae
Tumuliolynthus musatovi archaeocyath sponge
 Capsulocyathida - Alataucyathidae
Alataucyathus jaroschevitschi Zhuravleva 1955 archaeocyath sponge
 Capsulocyathida - Tomocyathidae
"Tomocyathus gini" = Coscinocyathella, "Tomocyathus operosus" = Coscinocyathella, "Tomocyathus kundatus" = Coscinocyathella
"Tomocyathus gini" = Coscinocyathella archaeocyath sponge
"Tomocyathus operosus" = Coscinocyathella archaeocyath sponge
"Tomocyathus kundatus" = Coscinocyathella archaeocyath sponge