Novospasskoye village (PIN collection 1809) (Jurassic of Russian Federation)

Where: Buryat, Russian Federation (51.3° N, 108.1° E: paleocoordinates 55.8° N, 108.8° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Ichetuy Formation, Oxfordian (163.5 - 157.3 Ma)

• Formation also translated Ichetyua. Insect workers often assign a late Early Jurassic-early Middle Jurassic (or Toarcian-Aalenian) age but radiometric dating of Ichituy Fm volcanics gives ages of 159-156 Ma.

Environment/lithology: lacustrine - small; lithified siliciclastic sediments

• Novospasskoe was a typical Mesozoic lake of type "A" according to Sinitshenkova and Zherikhin (1996), a deep mountain lake formed when a river valley was naturally dammed. It was a cold oligotrophic water body with low primary production and ample oxygen.

Size classes: macrofossils, mesofossils

Preservation: mold/impression

Collected by G.A. Dmitriev in 1960

Primary reference: V. N. Vishnyakova. 1982. Jurassic cockroaches of the new family Blattulidae from Siberia. Paleontological Journal 16(2):67-77 [M. Clapham/J. Karr]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 104949: authorized by Matthew Clapham, entered by Jered Karr on 12.02.2011, edited by Matthew Clapham

Creative Commons license: CC BY (attribution)

Taxonomic list

Insecta
 Plecoptera - Perlariopseidae
"Perlariopsis stipitatus" = Perlariopsis stipitata2
"Perlariopsis stipitatus" = Perlariopsis stipitata2 Sinitshenkova 1985 stonefly
PIN 1809/15,17
 Dicondylia - Blattulidae
Blattula lanceolata n. sp. Vishnyakova 1982 winged insect
PIN 1809/14
 Coleoptera -
Mesosperchus angulatus1 Ponomarenko 1985 beetle
PIN 1809/80
Memptus ganglbaueri1 Ponomarenko 1985 beetle
PIN 1809/79