Alekseevka Quarry, Mednikovo Fm. (Ordovician of Russian Federation)

Where: Russian Federation (59.4° N, 28.8° E: paleocoordinates 34.9° S, 0.2° E)

• coordinate estimated from map

When: Mednikovo Formation, Uhaku (466.0 - 460.9 Ma)

Environment/lithology: marine; limestone

Size classes: macrofossils, mesofossils

Primary reference: O. Dolgov and T. Meidla. 2011. Trilobite Biostratigraphy in the Middle and Upper Ordovician of Western Leningrad Region. Stratigraphy and Geological Correlation 19(6):618-630 [B. Kröger/B. Kröger]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 167734: authorized by Björn Kröger, entered by Björn Kröger on 30.03.2015

Creative Commons license: CC BY (attribution)

Taxonomic list

 Corynexochida - Illaenidae
Illaenus sp. Dalman 1827 trilobite
Illaenus crassicauda Wahlenberg 1826 trilobite
 Phacopida - Pterygometopidae
Estoniops exilis Eichwald 1858 trilobite
Chasmops cf. odini Eichwald 1860 trilobite
 Phacopida - Cheiruridae
Paraceraurus sp. Männil 1958 trilobite
Paraceraurus cf. aculeatus Eichwald 1860 trilobite
Sphaerocoryphe sp. Angelin 1854 trilobite
 Asaphida - Asaphidae
Asaphus (Neoasaphus) sp. Jaanusson 1953 trilobite
Asaphus (Neoasaphus) lepidus Törnquist 1884 trilobite
 Asaphida - Remopleurididae
Remopleurides nanus trilobite
Remopleurides nanus elongatus
Remopleurides sp. Portlock 1843 trilobite
 Asaphida - Raphiophoridae
Lonchodomas sp. Angelin 1854 trilobite
 Lichida - Lichidae
Homolichas aff. depressus Angelin 1854 trilobite