Aktugay, bed 7 (Cambrian of Kazakhstan)

Where: Kazakhstan (43.5° N, 69.9° E: paleocoordinates 2.7° N, 102.8° E)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Zhanaary Member (Shabakty Formation), Atdabanian (520.0 - 516.0 Ma)

• bed 7 (5 m thick), Rhombocorniculum cancellatum zone

• bed-level stratigraphic resolution

Environment/lithology: marine; lithified dolomite and lithified sandstone

Size class: macrofossils

Primary reference: V. V. Missarzhevsky and A. M. Mambetov. 1981. Stratigrafiya i fauna pogranichnykh sloyev Kembriya i Dokembriya Malogo Karatau [Stratigraphy and fauna of the Precambrian-Cambrian boundary beds of the Malyy Karatau]. Trudy Ordena Trudovogo Krasnogo Znameni Geologicheskiy Institut Akademiya NAUK SSSR 326:1-90 [W. Kiessling/U. Merkel/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 99300: authorized by Wolfgang Kiessling, entered by Uta Merkel on 05.11.2010

Creative Commons license: CC BY (attribution)

Taxonomic list

Microdictyon effusum
  -
Microdictyon effusum Bengtson et al. 1981
 Protoconodontida -
Amphigeisina renae Missarzhevsky and Mambetov 1981
Kijacus kijanicus Missarzhevsky 1966
Protoconodonta
  -
Protohertzina cultrata Missarzhevsky 1977
Orthothecimorpha
 Circothecida -
Asijatheca "sp. 1" Missarzhevsky and Mambetov 1981
Asijatheca probata n. gen. n. sp. Missarzhevsky and Mambetov 1981
Uniformitheca aladzharica Missarzhevsky and Mambetov 1981
Helcionelloida
 Helcionellida - Helcionellidae
Protowenella plena Missarzhevsky and Mambetov 1981
Igorella talassica Missarzhevsky and Mambetov 1981
 Sachitida -
Ninella serebrjannikovae Missarzhevsky and Mambetov 1981
Aculifera
  - Halkieriidae
Halkieria trianguliformis n. sp. Missarzhevsky and Mambetov 1981
Halkieria curvativa n. sp. Missarzhevsky and Mambetov 1981
Halkieria amorphe Meshkova 1974
Conodonta
 Conodontophorida -
Oneotodus triangulus n. sp. Missarzhevsky and Mambetov 1981 conodont
 Hyolithelminthida - Hyolithellidae
Hyolithellus vladimirovae Rozanov and Missarzhevsky 1966
 Hyolithelminthida - Torellellidae
Torellella biconvexa Rozanov et al. 1969
Coeloscleritophora
 Chancelloriida - Chancelloriidae
Chancelloria sp. Walcott 1920
Cambroclavida
  - Zhijinitidae
Pseudoclavus singularis Mambetov and Repina 1979
Cambroclavus clavus Mambetov and Repina 1979
Cambroclavus antis Mambetov and Repina 1979
Cambroclavus undulatus Mambetov and Repina 1979
Demospongea
  -
Karatubulus nodosus n. gen. n. sp.
Karatubulus nodosus n. gen. n. sp. Missarzhevsky and Mambetov 1981 demosponge
Heteractinida
 Octactinellida - Eiffeliidae
Lenastella mucronata, "Lenastella araniformis n. gen. n. sp." = Eiffelia araniformis
Lenastella mucronata Missarzhevsky and Mambetov 1981
"Lenastella araniformis n. gen. n. sp." = Eiffelia araniformis Missarzhevsky and Mambetov 1981