Bol'shaya Kos'yu River, Ilych River, Urals, Russia (Ordovician of Russian Federation)

Also known as Reef 1716

Where: Russian Federation (62.8° N, 58.7° E: paleocoordinates 14.5° S, 9.9° E)

• coordinate estimated from map

• local area-level geographic resolution

When: Ashgillian (449.5 - 443.7 Ma)

• Presumably middle late Ashgill (Rawtheyan?)

• formation-level stratigraphic resolution

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

• Reef complex, 110 m thick. 1 x 1.5 km across. Framework dominated by encrusting Girvanella, Rothpletzella and other microbes. Subordinate heliolitids (Plasmoporella, Heliolites, Propora), tabulate and rugose corals and hydroid problematica (Fistulella).

Size class: macrofossils

Collection methods: peel or thin section,

Primary reference: A. I. Antoshkina. 1996. Ordovician reefs of the Ural Mountains, Russia: A review. Facies 35:1-8 [W. Kiessling/W. Kiessling/W. Kiessling]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 24294: authorized by Wolfgang Kiessling, entered by Wolfgang Kiessling on 05.08.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

Hormogoneae
 Oscillatoriales - Girvanellaceae
Girvanella sp. Nicholson and Etheridge 1878
Cyanophyceae
  - Garwoodiaceae
? Hedstroemia sp. Rothpletz 1913
Ortonella sp. Garwood 1914
? Garwoodia sp. Wood 1941
Rothpletzella
  -
Renalcis
  - Chabakoviacea
Renalcis sp. Vologdin 1932
unclassified
  -
Nuia
  -
Nuia sp. Maslov 1954
Rhodophyceae
  - Solenoporaceae
Solenopora sp. Dybowski 1877
Chlorophyceae
 Dasycladales - Dasycladaceae
Dasycladaceae indet. Kutzing 1843
unclassified
  -
? Porifera indet. Grant 1836
Anthozoa
 Rugosa -
Rugosa indet. horn coral
 Tabulata -
Tabulata indet. tabulate coral
 Auloporida - Aulocystidae
"Sinopora sp." = Pseudoromingeria
"Sinopora sp." = Pseudoromingeria Yabe and Sugiyama 1941 tabulate coral
 Heliolitida - Heliolitidae
Heliolites sp. Dana 1846 tabulate coral
 Heliolitida - Plasmoporellidae
Plasmoporella sp. Kiaer 1899 tabulate coral
 Heliolitida - Proporidae
Propora sp. Milne-Edwards and Haime 1849 tabulate coral
Bryozoa
  -
Bryozoa indet. Ehrenberg 1831