Khos-Nelege, bed 40 (Cambrian of Russian Federation)

Where: Sakha, Russian Federation (71.3° N, 127.6° E: paleocoordinates 11.8° S, 4.7° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: Plicatolina perlata trilobite zone, Ogon'or Formation, Taoyuanian (498.5 - 485.4 Ma)

• bed 40, ~270-282 m from the base of the section, Cambrian stage 9 (Jiangshanian)

• bed-level stratigraphic resolution

Environment/lithology: slope; lithified wackestone

• distal slope environment (outer fan to basin transition)
• gray-greenish argillaceous-dolomitic wackestone with gray silty lens-nodular limestone

Size class: macrofossils

Preservation: cast

Primary reference: N. P. Lazarenko, I. Y. Gogin, T. V. Pegel and G. P. Abaimova. 2011. The Khos-Nelege section of the Ogon'or Formation: a potential candidate for the GSSP of stage 10, Cambrian System. Bulletin of Geosciences 86(3):555-568 [W. Kiessling/U. Merkel]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 133604: authorized by Wolfgang Kiessling, entered by Uta Merkel on 18.09.2012

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Trilobita
 Asaphida - Ceratopygidae
"Aplotaspis sp." = Charchaqia, "Aplotaspis caelata" = Charchaqia
"Aplotaspis sp." = Charchaqia Troedsson 1937 trilobite
"Aplotaspis caelata" = Charchaqia trilobite
 Olenida - Eulomidae
Kujandaspis sp.
Kujandaspis sp. Ivshin 1953 trilobite
 Olenida - Olenidae
Plicatolina perlata, Parabolina cf. angusta
Artiopoda
 Agnostida - Diplagnostidae
"Pseudagnostus (Sulcatagnostus) sp." = Pseudagnostus, "Rhaptagnostus impressus" = Pseudagnostus
"Pseudagnostus (Sulcatagnostus) sp." = Pseudagnostus Jaekel 1909
"Rhaptagnostus impressus" = Pseudagnostus
 Agnostida - Agnostidae
Neoagnostus (Machairagnostus) sp.