Baissa (PIN collection 1989, layer 31): Aptian, Russian Federation

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Insecta - Diptera - Mesosciophilidae
Blagoderov 1994 1 specimen
PIN 1989/3149 (1 measurement)
Insecta - Diptera - Mycetophilidae
Blagoderov 1995 1 specimen
PIN 1989/3271
Blagoderov 1997 1 specimen
PIN 1989/3283 (2 measurements)
Insecta - Coleoptera - Buprestidae
Alexeev 1996 1 specimen
PIN 1989/2929 (1 measurement)
Insecta - Neuroptera - Psychopsidae
Makarkin 2010 1 specimen
PIN 1989/55 (1 measurement)
Insecta - Neuroptera - Chrysopidae
1 specimen
PIN 1989/7 (1 measurement)
Insecta - Orthoptera - Prophalangopsidae
Gorochov 1996 1 specimen
PIN 1989/2560 (1 measurement)
Insecta - Baissomantidae
Gratshev and Zherikhin 1993 1 specimen
PIN 1989/2489 (1 measurement)
Gratshev and Zherikhin 1993 3 specimens
PIN 1989/1645, 8582, 8584
Insecta - Blattodea - Ectobiidae
Vršanský 1997 1 specimen
PIN 1989/2450
Vishnyakova 1964 97 specimens
PIN 1989/1639(1646),1613-1615,1618,1619,1621,1624,1627,1628,1630,1631,1636,1637,1637B,1648,1649,1658,1662,1668,1674,1686,1841,2444 (5 measurements)
Insecta - Mantodea
Gratshev and Zherikhin 1993 2 specimens
PIN 1989/2487, ?2488
Insecta - Susumaniidae
Kuzmina 1985 1 specimen
PIN 1989/2570 (1 measurement)
Kuzmina 1985 1 specimen
PIN 1989/2582 (1 measurement)
Kuzmina 1985 1 specimen
PIN 1989/2569 (1 measurement)
Kuzmina 1985 1 specimen
PIN 1989/2565 (1 measurement)
Insecta - Hemiptera - Palaeoaphididae
Shaposhnikov 1979 1 specimen
PIN 1989/3441
Kania and Wegierek 2008 3 specimens
PIN 1989/3340, 3343, 3592
Insecta - Hemiptera - Hoploridiidae
Popov and Shcherbakov 1991 1 specimen
PIN 1989/3555 (1 measurement)
Insecta - Hemiptera - Mimarachnidae
Shcherbakov 2007 1 specimen
PIN 1989/3590 (1 measurement)
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 carbonaceous siltstone
Secondary lithology: lithified marl
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:field collection
Collection size:3632 specimens
Reason for describing collection:taxonomic analysis
Metadata
Database number:122552
Authorizer:M. Clapham Enterer:M. Clapham, J. Karr, A. Noshirvan, L. Edwards
Modifier:M. Clapham Research group:paleoentomology
Created:2012-01-03 04:04:17 Last modified:2025-02-22 15:12:02
Access level:the public Released:2012-01-03 04:04:17
Creative Commons license:CC0
Reference information

Primary reference:
39068. V. N. Makarkin. 1997. Fossil Neuroptera of the Lower Cretaceous of Baisa, east Siberia. Part 3. Chrysopidae (Insecta). Spixiana 20:107-118 [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]
40954 V. A. Blagoderov. 1994. Dipterans (Mesosciophilidae) from the Lower Cretaceous of Transbaykal. Paleontological Journal 27(1A):123-130 [M. Clapham/M. Clapham/M. Clapham]
42205 V. A. Blagoderov. 1995. Fungus gnats of the tribe Sciophilini (Diptera, Mycetophilidae) from the Early Cretaceous of Transbaikalia. Paleontological Journal 29(1):72-83 [M. Clapham/J. Karr]
41289 V. A. Blagoderov. 1997. Fungus Gnats of the Tribe Gnoristini (Diptera, Mycetophilidae) from the Lower Cretaceous of Transbaikalia. Paleontological Journal 31(6):609-615 [M. Clapham/L. Edwards/J. Karr]
8895ETE A. V. Gorochov. 1996. New Mesozoic Hagloidea (Orthoptera). Paleontological Journal 30:440-448 [C. Labandeira/A. Spencer-Lee/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]
39680 V. N. Makarkin. 2010. New psychopsoid Neuroptera from the Early Cretaceous of Baissa, Transbaikalia. Annales de la Société Entomologique de France 46:254-261 [M. Clapham/A. Noshirvan/J. Karr]
39634 Y.u. A. Popov and D. E. Shcherbakov. 1991. Mesozoic Peloridioidea and their ancestors (Insecta: Hemiptera, Coleorrhyncha). Geologica et Palaeontologica 25:215-235 [M. Clapham/J. Karr]
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]
48296 V. N. Vishnyakova. 1964. Osovennosti zhilkovaniya perednikh kryl'ev novogo pozdneyurskogo tarakana. Paleontologischeskii Zhurnal 1964(1):82-87 [M. Clapham/M. Clapham/M. Clapham]
51890 P. Vršanský. 1997. Piniblattella gen. nov. - the most ancient genus of the family Blattellidae (Blattodea) from the Lower Cretaceous of Siberia. Entomological Problems 28:67-79 [M. Clapham/M. Clapham/M. Clapham]