Lynna River section L31B (Ordovician of Russian Federation)

Where: Russian Federation (60.0° N, 32.6° E: paleocoordinates 35.7° S, 1.9° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Asaphus expansus trilobite zone, Lynna Formation, Kunda (469.2 - 464.3 Ma)

• Meterage is negative because 0 meterage in section is at boundary between Jeltiaki member and overlying Frizy member which rests above this sample.

• bed-level stratigraphic resolution

Environment/lithology: open shallow subtidal; lithified limestone

• Limestone beds are tempestites

Size class: mesofossils

Primary reference: T. Hansen and A. T. Nielsen. 2003. Upper Arenig trilobite biostratigraphy and sea-level changes at Lynna River near Volkhov, Russia. Bulletin of the Geological Society of Denmark 50:105-114 [M. Hopkins/M. Hopkins]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 157146: authorized by Melanie Hopkins, entered by Melanie Hopkins on 06.06.2014, edited by Björn Kröger

Creative Commons license: CC BY (attribution)

Taxonomic list

 Orthida - Paurorthidae
Paurorthis spp. Schuchert and Cooper 1931
 Orthida - Productorthidae
 Orthida - Orthidae
Orthis callactis Dalman 1827
 Strophomenida - Taffiidae
Inversella spp. Opik 1933
 Billingsellida - Clitambonitidae
Apomatella ingrica Pahlen 1877
 Lingulida -
Linguloidea indet. Menke 1828
 Asaphida - Asaphidae
Asaphus expansus Wahlenberg 1821 trilobite
subgenus Asaphus
Megistaspis acuticauda Angelin 1854 trilobite
subgenus Megistaspidella
 Corynexochida - Panderiidae
Panderia sp. Volborth 1863 trilobite
 Lichida - Lichidae
Metopolichas sp. Gürich 1901 trilobite