Krutoy Log, Sukhie Solontsy bioherm, Batenevskiy Ridge, unit 5 (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 5102:S13, 5103:S1-6, 104 m thick, Kameshki stage

• group of beds-level stratigraphic resolution

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

• massive bioherms; in the basal part small calcimicrobial and calcimicrobial-archaeocyathan bioherms and biostromes with 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 81313: authorized by Wolfgang Kiessling, entered by Uta Merkel on 19.06.2008

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
unclassified
  -
Mongolocyathus sp.
Epiphyton
  - Ludloviaceae
Epiphyton sp.
Epiphyton sp. Bornemann 1886
Proaulopora
  -
Proaulopora sp.
Proaulopora sp. Vologdin 1962
Renalcis
  - Chabakoviacea
Renalcis sp.
Renalcis sp. Vologdin 1932
Trilobita
 Corynexochida - Dinesidae
"Compsocephalus mitis" = Aldanianus mitis
"Compsocephalus mitis" = Aldanianus mitis Repina 1964 trilobite
 Corynexochida - Chengkouiidae
Bidjinella sp.
Bidjinella sp. Repina 1964 trilobite
 Corynexochida - Corynexochidae
Milaspis cf. jaroshewitchi, Miranella rotunda
Archaeocyatha
 Ajacicyathida - Tumulocyathidae
Kotuyicyathellus minus, "Torosocyathellus torosus" = Plicocyathus torosus, Tumulocyathus raroseptatus
Kotuyicyathellus minus Osadchaya et al. 1979 archaeocyath sponge
"Torosocyathellus torosus" = Plicocyathus torosus Osadchaya et al. 1979 archaeocyath sponge
Tumulocyathus raroseptatus Osadchaya et al. 1979 archaeocyath sponge
 Ajacicyathida - Carinacyathidae
Porocyathellus cyroflexus, Carinacyathus sp.
Porocyathellus cyroflexus Osadchaya et al. 1979 archaeocyath sponge
Carinacyathus sp. archaeocyath sponge
 Ajacicyathida - Bronchocyathidae
Denaecyathus sp., Pseudotennericyathellus nelliae
Denaecyathus sp. archaeocyath sponge
Pseudotennericyathellus nelliae Osadchaya et al. 1979 archaeocyath sponge
 Ajacicyathida - Ajacicyathidae
Sibirecyathus sp., Sibirecyathus dissepimentalis
Sibirecyathus sp. Vologdin 1937 archaeocyath sponge
Sibirecyathus dissepimentalis archaeocyath sponge
 Ajacicyathida - Ethmocyathidae
Inessocyathus sp., "Pseudodegeletticyathellus repinae" = Frinalicyathus
Inessocyathus sp. archaeocyath sponge
"Pseudodegeletticyathellus repinae" = Frinalicyathus archaeocyath sponge
 Ajacicyathida -
Archaeocyathellus sp.
Archaeocyathellus sp. Ford 1873 archaeocyath sponge
 Capsulocyathida - Coscinocyathidae
Coscinocyathus dianthus
Coscinocyathus dianthus archaeocyath sponge
 Capsulocyathida - Cryptoporocyathidae
Capsulocyathus subcallosus
Capsulocyathus subcallosus archaeocyath sponge
 Archaeocyathida - Loculicyathidae
"Robustocyathus flexus" = Cambrocyathellus, Loculicyathus membranivestites
"Robustocyathus flexus" = Cambrocyathellus archaeocyath sponge
Loculicyathus membranivestites archaeocyath sponge
 Archaeocyathida - Archaeocyathidae
Sigmofungia diletata n. sp.
Sigmofungia diletata n. sp. Osadchaya et al. 1979 archaeocyath sponge