PBDB Collection

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

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

• Paleocoordinates: 65.5° N, 111.7° E (Wright 2013)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Ust' -Baleyskaya Member (Cheremkhovskaya Formation), Toarcian (184.2 - 174.7 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: CC0 (CC0)

Taxonomic list

Show authors, comments, and common names

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

¹Arnoldi et al. 1977; ²Pritykina 1985; ³Rasnitsyn 1982; ⁴Sinitshenkova 1985; ⁵Sukatsheva 1985; ⁶Zherikhin 1985