Buildups from Zuune Arts, Saalany Gol Formation (Cambrian of Mongolia)

Also known as Reef 2361

Where: Mongolia (47.2° N, 96.9° E: paleocoordinates 1.5° S, 6.1° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Salaany Gol Formation, Atdabanian (521.0 - 516.0 Ma)

• Upper Atdabanian

• group of beds-level stratigraphic resolution

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

• 4 types of buildups: 1) green-coloured calcimicrobe boundstones, first appearing 5 m from the base of the sequence; 2) red- or green-coloured calcimicrobe bafflestones at 55 m; 3) red-coloured Okulitchicyathus bindstones at 105 m; 4) red-coloured radiocyath-archaeocyath-cribricyath bioherms at 125 m. These buildups are repeated in the same order in the final 65 m of the sequence.

Size classes: macrofossils, mesofossils

Collection methods: peel or thin section,

Primary reference: R. Wood, A. Y. Zhuravlev, and C. T. Anaaz. 1993. The ecology of Lower Cambrian buildups from Zuune Arts, Mongolia: implications for early metazoan reef evolution. Sedimentology 40(5):829-858 [W. Kiessling/U. Merkel]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 63210: authorized by Wolfgang Kiessling, entered by Uta Merkel on 09.08.2006

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Gordonophyton
  - Chabakoviacea
Gordonophyton grande
Chabakoviacea
  - Chabakoviacea
Tarthinia rotunda
Tubomorphophyton
  - Chabakoviacea
Tubomorphophyton nubillum
Batinevia
  - Chabakoviacea
Batinevia sp.
Batinevia sp. Korde 1966
Renalcis
  - Chabakoviacea
Renalcis compositus
Hormogoneae
 Oscillatoriales - Girvanellaceae
Girvanella problematica
Girvanella problematica Nicholson and Etheridge 1878
unclassified
  -
Razumovskia seriata
Epiphyton
  - Ludloviaceae
Epiphyton fruticosum
Helcionelloida
 Helcionellida - Helcionellidae
Ilsanella sp., Obtusoconus sp.
Ilsanella sp. Missarzhevsky 1981
Obtusoconus sp. Yü 1979
Brachiopoda
  -
Brachiopoda indet.
Brachiopoda indet. Cuvier 1805
Hyolitha
 Hyolithida -
Hyolithida indet.
Hyolithida indet. Mathew 1962
Hydroconozoa
  -
Hydroconus tenuis
Hexactinellida
  -
Hexactinellida indet.
Hexactinellida indet. Schmidt 1870 glass sponge
Dodecaactinella
  - Polyactinellidae
Dodecaactinella sp.
Archaeocyatha
 Archaeocyathida - Loculicyathidae
Okulitchicyathus sp., Cambrocyathellus pannonicus, Cambrocyathellus tuberculatus
Okulitchicyathus sp. archaeocyath sponge
n. sp.
Cambrocyathellus pannonicus archaeocyath sponge
Cambrocyathellus tuberculatus archaeocyath sponge
 Archaeocyathida - Archaeopharetridae
Archaeopharetra sp.
Archaeopharetra sp. archaeocyath sponge
 Monocyathida - Monocyathidae
Archaeolynthus sp.
Archaeolynthus sp. Taylor 1910 archaeocyath sponge
 Ajacicyathida - Bronchocyathidae
Compositocyathus sp.
Compositocyathus sp. archaeocyath sponge
n. sp. ?
 Ajacicyathida - Ajacicyathidae
Nochoroicyathus concinnus, Nochoroicyathus changaiensis, Nochoroicyathus chassaktuensis, Nochoroicyathus certus, Rotundocyathus levigatus, Robustocyathellus abundans, Ajacicyathus mongolicus
Nochoroicyathus concinnus archaeocyath sponge
Nochoroicyathus changaiensis archaeocyath sponge
Nochoroicyathus chassaktuensis archaeocyath sponge
Nochoroicyathus certus archaeocyath sponge
Rotundocyathus levigatus archaeocyath sponge
Robustocyathellus abundans archaeocyath sponge
Ajacicyathus mongolicus archaeocyath sponge
Cribricyatha
 Vologdinophyllida - Striatocyathidae
Striatocyathus sajanensis
Striatocyathus sajanensis cribricyath sponge
 Vologdinophyllida - Leibaellidae
Leibaella elovica
Leibaella elovica cribricyath sponge
Radiocyatha
  - Hetairacyathidae
Girphanovella georgensis
 Hyolithelminthida -
Koksuja sp.
Koksuja sp. Missarzhevsky and Mambetov 1981