Tourga river (Cretaceous of Russian Federation)

Also known as Turga

Where: Nerchinsk, Russian Federation (50.8° N, 116.2° E: paleocoordinates 54.4° N, 114.9° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Turga Formation, Early/Lower Aptian (125.5 - 122.5 Ma)

• Correlative with the Zaza Formation and most likely with upper Yixian or lower Jiufotang Formation, therefore an Aptian (probably early Aptian) age.

• group of beds-level stratigraphic resolution

Environment/lithology: lacustrine; lithified, tuffaceous, blue mudstone

Size class: macrofossils

Preservation: mold/impression, adpression

Primary reference: E. Eichwald. 1864. Sur un terrain jurassique à poissons et insectes d'eau douce de la Sibérie orientale. Bulletin de la Société Géologique de France, Deuxième Série 21:19-25 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 142140: authorized by Matthew Clapham, entered by Jered Karr on 06.04.2013, edited by Matthew Clapham

Creative Commons license: CC BY (attribution)

Taxonomic list

 Conchostraca -
Estheria middendorfi Jones 1862 clam shrimp
Insecta
 Ephemeroptera - Hexagenitidae
Ephemeropsis trisetalis n. gen. n. sp.
Ephemeropsis trisetalis n. gen. n. sp. Eichwald 1864 mayfly
Gastropoda
 Architaenioglossa - Viviparidae
Paludina pura Eichwald 1864 snail
Actinopteri
 Elopiformes - Elopidae
"Pholidophorus macrorhynchus" = Aethalion macrorhynchus
"Pholidophorus macrorhynchus" = Aethalion macrorhynchus Eichwald 1846