Letyatkin Cape, sample LC.84.47 (Miocene of Russian Federation)

Where: Russian Federation (69.7° N, 163.3° E: paleocoordinates 70.0° N, 163.7° E)

• coordinate stated in text

• outcrop-level geographic resolution

When: Late/Upper Miocene (11.6 - 5.3 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: terrestrial; unlithified lithology not reported

• In contrast, the geotectonic setting of the Indigirka-Zyryanka basin is associated with the collision forming the Verkhoyansk-Chersky fold belt. It is located between the Precambrian Siberian platform in the west and the Jurassic Kolyma-Omolon microcontinent in the east (Parfenov, 1991; Prokopiev, 1998). The tectonic deformation starts in Early Cretaceous time in the central zone (Chersky Range) and propagates in both directions towards west and towards east where it continues in the Indigirka-Zyryanka basin until Pliocene time.

Size classes: macrofossils, mesofossils

Collection methods: core

Primary reference: S. V. Kiselev and V. I. Nazarov. 2009. Late Cenozoic insects of northern Eurasia. Paleontological Journal 43(7):732-850 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 153434: authorized by Matthew Clapham, entered by Matthew Clapham on 17.12.2013

Creative Commons license: CC BY (attribution)

Taxonomic list

Insecta
 Coleoptera - Dytiscidae
Agabus sp. Leach 1817 predaceous diving beetle
 Coleoptera - Trachypachidae
Trachypachus ? holmbergi Mannerheim 1853 false ground beetle
 Coleoptera - Carabidae
Dyschiriodes sp. Jeannel 1941 ground beetle
Pterostichus sp. Bonelli 1810 ground beetle
P. (Lenapterus) sp. or P. (Petrophilus) sp.
Pterostichus (Cryobius) sp. Chaudoir 1838 ground beetle
Pterostichus (Argutor) sp. Dejean 1821 ground beetle
Blethisa inexpectata Goulet and Smetana 1983 ground beetle
Diacheila cf. arctica Gyllenhal 1810 ground beetle
Bembidion (Peryphus) "sp. 1" Dejean 1821 ground beetle
Notiophilus aquaticus Linnaeus 1758 ground beetle
 Coleoptera - Curculionidae
Notaris eversmanni Faust 1882 snout beetle
"Pelenomus ? velaris" = Rhynchaenus velaris Gyllenhal 1827 snout beetle
Isochnus sp. Thomson 1859 snout beetle
Hypera nigrirostres snout beetle
cf. Hypera sp. Germar 1817 snout beetle
Lepidophorus lineaticollis Kirby 1837 snout beetle
 Coleoptera - Helophoridae
Helophorus tuberculatus Gyllenhal 1808 water scavenger beetle
 Coleoptera - Staphylinidae
Olophrum sp. Erichson 1839 rove beetle