Krutoy Log, Sukhie Solontsy bioherm, Batenevskiy Ridge, unit 9 (Cambrian of Russian Federation)

Also known as Reef 3775

Where: Khakasiya, Russian Federation (54.0° N, 90.8° E: paleocoordinates 8.5° S, 7.4° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Usa Formation, Botomian (516.0 - 512.9 Ma)

• sample 5105:2,3, 5106:1-3,6,7, 146 m thick, Sanashtykgol stage

• group of beds-level stratigraphic resolution

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

• small 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 81317: authorized by Wolfgang Kiessling, entered by Uta Merkel on 19.06.2008

Creative Commons license: CC BY (attribution)

Taxonomic list

Trilobita
 Redlichiida - Redlichinidae
Redlichina sp. Lermotova 1940 trilobite
 Corynexochida - Dolichometopidae
 Corynexochida - Corynexochidae
 Corynexochida - Jakutidae
 Corynexochida - Dorypygidae
Kootenia sp. Walcott 1899 trilobite
 Corynexochida - Dinesidae
Pseudoerbia sp. Repina 1964 trilobite
 Corynexochida - Edelsteinaspididae
  -
Archaeocyatha
 Ajacicyathida - Vologdinocyathidae
Syringocyathus sp. archaeocyath sponge
 Ajacicyathida - Erbocyathidae
Ladaecyathus laevus archaeocyath sponge
 Ajacicyathida - Sajanocyathidae
Irinaecyathus sp. archaeocyath sponge
Zonacyathus cf. borealis Handfield 1971 archaeocyath sponge
 Ajacicyathida - Ethmocyathidae
Baikalocyathus ex gr. rossicus archaeocyath sponge
 Ajacicyathida - Carinacyathidae
"Porocyathus sp." = Carinacyathus
"Porocyathus sp." = Carinacyathus archaeocyath sponge
 Ajacicyathida - Tercyathidae
Clathricyathellus sp. archaeocyath sponge
Tercyathellus altaicus archaeocyath sponge
 Monocyathida - Monocyathidae
Archaeolynthus sibiricus archaeocyath sponge
Archaeolynthus macrospinosus archaeocyath sponge
 Archaeocyathida - Shiveligocyathidae
Shiveligocyathus sp. archaeocyath sponge
 Archaeocyathida - Loculicyathidae
Loculicyathus membranivestites archaeocyath sponge
 Capsulocyathida - Clathricoscinidae
Clathricoscinus infirmus archaeocyath sponge
Clathricoscinus vassilievi archaeocyath sponge
 Capsulocyathida - Uralocyathellidae
"Uralocyathella repinae" = Rhabdolynthus, "Uralocyathella sp." = Rhabdolynthus
"Uralocyathella repinae" = Rhabdolynthus archaeocyath sponge
"Uralocyathella sp." = Rhabdolynthus archaeocyath sponge
 Capsulocyathida - Cryptoporocyathidae
Capsulocyathus subcallosus archaeocyath sponge
Capsulocyathus irregularis archaeocyath sponge
Epiphyton
  - Ludloviaceae
Epiphyton sp. Bornemann 1886
Proaulopora
  -
Proaulopora sp. Vologdin 1962