Ust-Baley Locality (PIN collection 1873) (Jurassic of Russian Federation)

Where: Irkutsk, Russian Federation (54.2° N, 100.3° E: paleocoordinates 61.8° N, 99.4° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Ust' -Baleyskaya Member (Cheremkhovskaya Formation), Toarcian (182.7 - 174.1 Ma)

Environment/lithology: lacustrine - small; lithology not reported

• The Ust'-Baley palaeocenosis is a well-described Mesozoic "hypotrophic" lake (Zherikhin and Kalugina 1985), of type "B" according to Sinitshenkova and Zherikhin (1996). It was a small, shallow, permanent lake in a large river valley (but completely isolated from the river), with a low primary production and high oxygen concentration.

Size classes: macrofossils, mesofossils

Preservation: mold/impression

Collected by E.S. Rasskazov in 1964

• Collector interpreted from somewhat confusing parallel lists

Primary reference: A. G. Sharov. 1968. Filogeniya ortopteroidnykh nasekomykh. Trudy Paleontologicheskogo Instituta Akademii Nauk SSSR 118:1-216 [C. Beard/C. Beard/J. Karr]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 113471: authorized by Matthew Clapham, entered by Jered Karr on 31.07.2011, edited by Matthew Clapham

Creative Commons license: CC BY (attribution)

Taxonomic list

Insecta
 Orthoptera - Protogryllidae
"Protogryllus angaricus n. sp." = Angarogryllus angaricus
"Protogryllus angaricus n. sp." = Angarogryllus angaricus Sharov 1968 grasshopper
PIN 1873/16
 Orthoptera - Haglidae
Archaboilus similis n. sp.6 Zherikhin 1985 hump-winged cricket
PIN 1873/25
 Coleoptera - Coptoclavidae
Stygeonectes jurassicus1 Ponomarenko 1977 beetle
 Mecoptera - Orthophlebiidae
Orthophlebia lauta n. sp.5 Sukatsheva 1985 scorpionfly
PIN 1873/21
Orthophlebia retorrida n. sp.5 Sukatsheva 1985 scorpionfly
PIN 1873/22
 Reculida - Geinitziidae
Shurabia angustata3 Martynov 1937 winged insect
PIN 1873/19
Shurabia parvula n. sp.3 Rasnitsyn 1982 winged insect
PIN 1873/18
 Ephemeroptera - Siphlonuridae
Mesobaetis sibirica4 Brauer et al. 1889 mayfly
PIN 1873/3
 Odonata - Campterophlebiidae
Angaroneura pulla n. sp.2, Olonkia ignota n. gen. n. sp.2, Xanthohypsa baleiensis n. sp.2
Angaroneura pulla n. sp.2 Pritykina 1985 dragonfly
PIN 1873/13
Olonkia ignota n. gen. n. sp.2 Pritykina 1985 dragonfly
PIN 1873/12
Xanthohypsa baleiensis n. sp.2 Pritykina 1985 dragonfly
PIN 1873/14