Western Sayan Range, Aktash biostrome (Silurian of Russian Federation)

Also known as Reef 3687

Where: Khakasiya, Russian Federation (51.6° N, 89.7° E: paleocoordinates 25.6° N, 20.6° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Aktash Formation, Llandovery (443.4 - 433.4 Ma)

• upper half of the formation

• group of beds-level stratigraphic resolution

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

• coral-stromatoporoid biostrome, up to 1.5 m thick and 300 m lateral extension

Size class: macrofossils

Primary reference: A. I. Naumenko. 1970. Kompleksy rannesiluriyskikh tabulyatomorfnykh korallov zapadnogo Sayana i ikh ekologicheskiye osobennosti [Early Silurian tabulate coral assemblages of the western Sayan region and their ecologic characteristics]. in Zakonomernosti rasprostraneniya paleozoyskikh korallov SSSR [Distribution and sequence of Paleozoic corals of the USSR], Papers of II Allunion Symposium on fossil corals of the USSR (3)60-74 [W. Kiessling/U. Merkel]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 78710: authorized by Wolfgang Kiessling, entered by Uta Merkel on 15.02.2008

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Crinoidea
  -
Crinoidea indet.
Crinoidea indet. Miller 1821 Sea lily
Rhynchonellata
 Pentamerida - Pentameridae
Pentamerus oblongus
Pentamerus oblongus de Sowerby 1839
Anthozoa
 Stauriida - Streptelasmatidae
Streptelasma sp.
Streptelasma sp. Hall 1847 horn coral
 Favositida - Multisoleniidae
Multisolenia tortuosa
Multisolenia tortuosa Fritz 1937 tabulate coral
 Favositida - Favositidae
Mesofavosites khalfini, Mesofavosites sp., Mesofavosites aff. obliquus, Mesofavosites aff. fleximurinus, Paleofavosites cf. alveolaris, Paleofavosites forbesiformis, Favosites aff. notabilis, Favosites aff. promenens, Favosites (Sapporipora) favosideri, Favosites sp., Favosites favosiformis, Favosites favosus, Favosites kalevi, Favosites gothlandicus, Favosites multicarinatus
Mesofavosites khalfini tabulate coral
Mesofavosites sp. Sokolov 1951 tabulate coral
Mesofavosites aff. obliquus Sokolov 1951 tabulate coral
Mesofavosites aff. fleximurinus Sokolov 1951 tabulate coral
Favosites aff. notabilis tabulate coral
Favosites aff. promenens tabulate coral
Favosites sp. Lamarck 1816 tabulate coral
Favosites favosiformis Sokolov 1951 tabulate coral
subsp. multitabulata and globosa
Favosites favosus Goldfuss 1826 tabulate coral
Favosites kalevi Klaamann 1962 tabulate coral
Favosites gothlandicus Lamarck 1816 tabulate coral
Favosites multicarinatus Sokolov 1952 tabulate coral
 Favositida - Alveolitidae
Subalveolites eichwaldi, Subalveolites panderi
Subalveolites eichwaldi Sokolov 1955 tabulate coral
Subalveolites panderi Sokolov 1955 tabulate coral
 Favositida - Coenitidae
Placocoenites pellicula
Placocoenites pellicula Klaamann 1964 tabulate coral
 Heliolitida - Heliolitidae
Heliolites decipiens
Heliolites decipiens tabulate coral
 Heliolitida - Proporidae
Propora magna
Propora magna tabulate coral
 Heliolitida - Halysitidae
Catenipora sp., Catenipora maxima, "Catenipora exilis" = Halysites jacovickii, "Catenipora distans" = Halysites distans, Halysites regularis
Catenipora sp. Lamarck 1816 tabulate coral
Catenipora maxima Fischer-Benzon 1871 tabulate coral
subsp. maxima
"Catenipora exilis" = Halysites jacovickii Fischer von Waldheim 1828 tabulate coral
"Catenipora distans" = Halysites distans Eichwald 1829 tabulate coral
Halysites regularis Fischer-Benzon 1871 tabulate coral
Stromatoporoidea
 Clathrodictyida - Gerronostromatidae
"Clathrodictyon ex gr. regulare" = Petridiostroma regulare
"Clathrodictyon ex gr. regulare" = Petridiostroma regulare Rosen 1867 stromatoporoid sponge
 Actinostromatida - Actinostromatidae
"Actinostroma ex gr. intertextum" = Plectostroma intertextum
"Actinostroma ex gr. intertextum" = Plectostroma intertextum Nicholson 1886 stromatoporoid sponge