Baissa (PIN collection 3064, bed 2): Aptian, Russian Federation

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Insecta - Mantodea
Gratshev and Zherikhin 1993 1 specimen
PIN 3064/419
Insecta - Alienoptera - Umenocoleidae
Vršanský 1999 1 specimen
PIN 3064/3375
Insecta - Susumaniidae
Kuzmina 1985 2 specimens
PIN 3064/8300, 8301
Insecta - Coleoptera - Buprestidae
Alexeev 1996 1 specimen
PIN 3064/7129 (1 measurement)
Insecta - Hemiptera - Mimarachnidae
Shcherbakov 2007 1 specimen
PIN 3064/4018
Insecta - Hemiptera - Oviparosiphidae
1 specimen
PIN 3064/2235 (3 measurements)
3 specimens
PIN 3064/2316, 2213 (assumed to be from bed 2) (3 measurements)
Insecta - Hemiptera - Palaeoaphididae
Kania and Wegierek 2008 1 specimen
PIN 3064/3984
Kania and Wegierek 2008 2 specimens
PIN 3064/3976, 3986
Kania and Wegierek 2008 1 specimen
PIN 3064/3982
Kania and Wegierek 2008 4 specimens
PIN 3064/1899, 2232, 3983, 4009
Kania and Wegierek 2008 1 specimen
PIN 3064/3980 (2 measurements)
Kania and Wegierek 2008 2 specimens
PIN 3064/2231, 3987
Kania and Wegierek 2008 2 specimens
PIN 3064/2233, 4006
see common names

Geography
Country:Russian Federation State/province:Buryatia
Coordinates: 53.3° North, 112.1° East (view map)
Paleocoordinates:50.9° North, 119.4° East (Wright 2013)
Basis of coordinate:based on nearby landmark
Geographic resolution:outcrop
Time
Period: Cretaceous Epoch: Early Cretaceous
Stage: Aptian 10 m.y. bin: Cretaceous 3
Key time interval: Aptian
Age range of interval: 121.4 - 113.2 m.y. ago
Stratigraphy
Formation:Zaza
Stratigraphic resolution:group of beds
Stratigraphy comments: C. longipoda, E. trisetalis and Lycoptera all occur in the Zaza Formation indicating that this formation could be correlated with the upper Yixian Formation and the lower Jiufotang Formation in western Liaoning, which have a duration of 122.5-120 Ma. So it is possible to assign the Zaza Formation to an Aptian age. Also correlated with Barremian-Aptian based on plants and pollen.
Lithology and environment
Primary lithology: lithified marl
Secondary lithology: lithified carbonaceous siltstone
Environment:lacustrine - large Tectonic setting:rift
Geology comments: "The water body is reconstructed as an intermontane lake with the depth of 20 - 30 meters (LYAMINA 1980) situated within a granite massif. The presence of thick layers of the bituminous shales shows that the lake was meromictic, with the oxygen deficiency and high hydrogen sulphur level in the hypolimnion. However, the oxygenated epilimnion should be thick, with a lower boundary well beneath the limit of episodic wave action because no suffocation events are documented. The abundance of caddisflies, dobsonfly larvae and other groups intolerant to oxygen deficiency shows that in more shallow areas the water was clear and well-oxygenated even near the bottom. The lake ecosystem was highly productive as indicated by its complex trophic structure (Fig. 2) with several levels of predators up to the large sturgeon-like fish Stychopterus as well as by the extremely high abundance of planetonivorous phantom midges (SINICHENKOVA & ZHERIKHIN 1996)." ZHERIKHIN et al., 1999
Taphonomy
Modes of preservation:mold/impression
Size of fossils:macrofossils
Collection methods and comments
Collection methods:survey of museum collection
Reason for describing collection:taxonomic analysis
Museum repositories:PIN
Metadata
Database number:125412
Authorizer:M. Clapham Enterer:M. Clapham, J. Karr, L. Edwards
Modifier:M. Clapham Research group:paleoentomology
Created:2012-03-09 11:32:04 Last modified:2025-02-22 15:12:02
Access level:the public Released:2012-03-09 11:32:04
Creative Commons license:CC0
Reference information

Primary reference:
40721. G. K. Shaposhnikov and P. Wegierek. 1989. New late Mesozoic aphids (Oviparosiphidae, Homoptera). Paleontological Journal 23(3):37-47 [M. Clapham/M. Clapham]

Secondary references:

40870 A. V. Alexeev. 1996. Buprestid beetles (Coleoptera, Buprestidae) from the Mesozoic and Cenozoic of CIS. Paleontological Journal 30:559-565 [M. Clapham/M. Clapham]
8897ETE V. G. Gratshev and V. V. Zherikhin. 1993. New Fossil Mantids (Insecta, Mantida [Sic]). Paleontological Journal 27(1A):148-165 [C. Labandeira/A. Spencer-Lee/M. Clapham]
48084 I. Kania and P. Wegierek. 2008. Palaeoaphididae (Hemiptera, Sternorrhyncha) from Lower Cretaceous Baissa deposits: Morphology and classification. Monografie faunistyczne 25:1-135 [M. Clapham/J. Karr]
40765 S. A. Kuzmina. 1985. New Orthoptera of the Family Phasmomimidae from the Lower Cretaceous in Transbaikalia. Paleontological Journal 19(56):56-63 [M. Clapham/L. Edwards]
46890 D. E. Shcherbakov. 2007. Mesozoic spider mimics — Cretaceous Mimarachnidae fam. n. (Homoptera: Fulgoroidea). Russian Entomological Journal 16(3):259-264 [M. Clapham/J. Karr]
51570 P. Vršanský. 1999. Two new species of Blattaria (Insecta) from the Lower Creataceous of Asia with comments on the origin and phylogenetic position of families Polypagidae and Blattulidae. Entomological Problems 30(2):85-91 [M. Clapham/M. Clapham/M. Clapham]
62210 D. Żyła, A. Homan, and P. Wegierek. 2017. Polyphyly of the extinct family Oviparosiphidae and its implications for inferring aphid evolution (Hemiptera, Sternorrhyncha). PLoS One 12(4):e0174791 [M. Clapham/M. Clapham/M. Clapham]