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 (459.7 - 458.0 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/P. Wagner]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

Show authors, comments, and common names
unclassified
  -
Pseudobasiliella sp.
Trilobita
 Corynexochida - Illaenidae
Illaenus schmidti, Illaenus sp., Illaenus kuckersiana, Illaenus crassicauda
Illaenus sp. Dalman 1827 trilobite
Illaenus crassicauda Wahlenberg 1826 trilobite
 Phacopida - Pterygometopidae
"Achatella (Vironiaspis) kuckersiana" = Achatella kuckersianus, Estoniops exilis, Chasmops cf. odini
"Achatella (Vironiaspis) kuckersiana" = Achatella kuckersianus Schmidt 1881 trilobite
Estoniops exilis Eichwald 1858 trilobite
Chasmops cf. odini Eichwald 1860 trilobite
 Phacopida - Cheiruridae
Paraceraurus sp., Paraceraurus cf. aculeatus, Sphaerocoryphe sp.
Paraceraurus sp. Männil 1958 trilobite
Paraceraurus cf. aculeatus Eichwald 1860 trilobite
Sphaerocoryphe sp. Angelin 1854 trilobite
 Trinucleida - Raphiophoridae
Lonchodomas sp.
Lonchodomas sp. Angelin 1854 trilobite
 Asaphida - Asaphidae
Asaphus (Neoasaphus) robergi, Asaphus (Neoasaphus) sp., Asaphus (Neoasaphus) lepidus
Asaphus (Neoasaphus) sp. Jaanusson 1953 trilobite
Asaphus (Neoasaphus) lepidus Törnquist 1884 trilobite
 Asaphida - Remopleurididae
Remopleurides nanus, Remopleurides sp.
Remopleurides nanus trilobite
Remopleurides nanus elongatus
Remopleurides sp. Portlock 1843 trilobite
 Lichida - Lichidae
Homolichas aff. depressus
Homolichas aff. depressus Angelin 1854 trilobite