Gerasimov River, Western Sayan (Cambrian of Russian Federation)

Also known as Reef 3785

Where: Khakasiya, Russian Federation (52.8° N, 90.4° E: paleocoordinates 7.6° S, 8.2° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Upper Monok Formation, Botomian (516.0 - 512.9 Ma)

• Sanashtykgol stage

• group of beds-level stratigraphic resolution

Environment/lithology: perireef or subreef; lithified limestone

• limestone beds intercalated with volcaniclastic sediments

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 81451: authorized by Wolfgang Kiessling, entered by Uta Merkel on 24.06.2008

Creative Commons license: CC BY (attribution)

Taxonomic list

Bicyathus
  -
Archaeocyatha
 Archaeocyathida - Archaeocyathidae
Archaeocyathus sp. Billings 1861 archaeocyath sponge
 Archaeocyathida - Loculicyathidae
Loculicyathus membranivestites archaeocyath sponge
Loculicyathus sp. archaeocyath sponge
"Robustocyathus sp." = Cambrocyathellus archaeocyath sponge
Paranacyathus sp. archaeocyath sponge
 Ajacicyathida - Carinacyathidae
"Carinacyathus bagenovi" = Carinacyathus, "Porocyathus sp." = Carinacyathus
"Carinacyathus bagenovi" = Carinacyathus archaeocyath sponge
"Porocyathus sp." = Carinacyathus archaeocyath sponge
 Ajacicyathida - Ajacicyathidae
"Nochoroicyathus sp." = Nochoroicyathus, "Aldanocyathus sp." = Nochoroicyathus, "Aldanocyathus arteintervallum" = Nochoroicyathus, Sibirecyathus sp., Rotundocyathus sp.
"Nochoroicyathus sp." = Nochoroicyathus Zhuravleva 1951 archaeocyath sponge
"Aldanocyathus sp." = Nochoroicyathus Zhuravleva 1951 archaeocyath sponge
"Aldanocyathus arteintervallum" = Nochoroicyathus archaeocyath sponge
Sibirecyathus sp. Vologdin 1937 archaeocyath sponge
Rotundocyathus sp. Vologdin 1960 archaeocyath sponge
 Ajacicyathida - Bronchocyathidae
Svetlanocyathus sp. archaeocyath sponge
 Ajacicyathida - Sajanocyathidae
Sajanocyathus ussovi archaeocyath sponge
Sajanocyathus sp. archaeocyath sponge
Formosocyathus sp. archaeocyath sponge
Irinaecyathus sp. archaeocyath sponge
Zonacyathus sp. archaeocyath sponge
 Ajacicyathida - Ethmocyathidae
"Voroninicyathus pseudotichotus" = Inessocyathus
"Voroninicyathus pseudotichotus" = Inessocyathus archaeocyath sponge
 Ajacicyathida - Tercyathidae
Tercyathellus sp. archaeocyath sponge
Tercyathus sp. archaeocyath sponge
 Ajacicyathida - Pretiosocyathidae
Pretiosocyathus sp. Rozanov 1966 archaeocyath sponge
 Ajacicyathida - Tumulocyathidae
Tumulocyathus sp. archaeocyath sponge
 Ajacicyathida - Dokidocyathidae
Dokidocyathus sp. Taylor 1910 archaeocyath sponge
 Putapacyathida - Alphacyathidae
"Aptocyathus sp." = Aptocyathus, "Galinaecyathus sp." = Aptocyathus
"Aptocyathus sp." = Aptocyathus Vologdin 1937 archaeocyath sponge
"Galinaecyathus sp." = Aptocyathus Vologdin 1937 archaeocyath sponge
 Monocyathida - Tumuliolynthidae
Tumuliolynthus sp. Zhuravleva 1963 archaeocyath sponge
Tumuliolynthus musatovi archaeocyath sponge
Tumuliolynthus tubexternus archaeocyath sponge
 Monocyathida - Monocyathidae
Archaeolynthus unimurus archaeocyath sponge
Archaeolynthus taylori archaeocyath sponge
Archaeolynthus nalivkini archaeocyath sponge
Archaeolynthus sp. Taylor 1910 archaeocyath sponge
 Capsulocyathida - Coscinocyathidae
Coscinocyathus sp. Bornemann 1884 archaeocyath sponge
 Capsulocyathida - Clathricoscinidae
Clathricoscinus infirmus archaeocyath sponge
Clathricoscinus vassilievi archaeocyath sponge
Clathricoscinus dentatus archaeocyath sponge
Clathricoscinus sp. archaeocyath sponge
 Capsulocyathida - Tomocyathidae
"? Tomocyathus sp." = Coscinocyathella
"? Tomocyathus sp." = Coscinocyathella archaeocyath sponge
 Capsulocyathida - Cryptoporocyathidae
Capsulocyathus subcallosus archaeocyath sponge