Lynna River section L31A (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 157145: authorized by Melanie Hopkins, entered by Melanie Hopkins on 06.06.2014, edited by Björn Kröger

Creative Commons license: CC BY (attribution)

Taxonomic list

Trilobita
 Asaphida - Asaphidae
Megistaspis acuticauda Angelin 1854 trilobite
subgenus Megistaspidella
 Phacopida - Pterygometopidae
Ingriops intermedius Schmidt 1881 trilobite
Lingulata
 Lingulida -
Linguloidea indet. Menke 1828
Rhynchonellata
 Pentamerida - Porambonitidae
Porambonites planus Pander 1830
 Orthida - Orthidae
Orthis callactis Dalman 1827
 Orthida - Productorthidae
Nicolella sp. Reed 1917
Productorthis eminens Pander 1830
 Orthida - Paurorthidae
Paurorthis spp. Schuchert and Cooper 1931
Strophomenata
 Billingsellida - Clitambonitidae
"Neumania sp." = Palaeoneumania Hansen and Harper 2005
 Strophomenida - Sowerbyellidae
Ujukella fastigata Rubel 1961
 Strophomenida - Plectambonitidae
"Ingria nefedyevi" = Ingria nefedjevi
"Ingria nefedyevi" = Ingria nefedjevi Eichwald 1855
 Strophomenida - Taffiidae
Inversella spp. Opik 1933