Baissa (PIN collection 4210, unknown layer) (Cretaceous of Russian Federation)

Where: Buryatia, Russian Federation (53.3° N, 112.1° E: paleocoordinates 56.0° N, 108.5° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Zaza Formation, Aptian (125.0 - 113.0 Ma)

• 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.

Environment/lithology: lacustrine - large; lithified siltstone and lithified marl

• "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

Size classes: macrofossils, mesofossils

Preservation: mold/impression

Reposited in the PIN

Primary reference: H. Zhang and A. P. Rasnitsyn. 2004. Pelecinid wasps (Insecta, Hymenoptera, Proctotrupoidea) from the Cretaceous of Russia and Mongolia. Cretaceous Research 25:807-825 [M. Clapham/J. Karr]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 118216: authorized by Matthew Clapham, entered by Jered Karr on 09.10.2011, edited by Matthew Clapham and Lindy Edwards

Creative Commons license: CC BY (attribution)

Taxonomic list

Insecta
 Hemiptera - Bajsaphididae
Bajsaphididae indet.3 Homan et al. 2015 aphid
PIN 4210/2632, 4157, 5598
Bajsaphis kononovae3 Shaposhnikov 1985 aphid
PIN 4210/2844
Bajsaphis abbreviata n. sp.3 Homan et al. 2015 aphid
PIN 4210/2806
Bajsaphis cuspidata n. sp.3 Homan et al. 2015 aphid
PIN 4210/6905
Bajsaphis eridmata n. sp.3 Homan et al. 2015 aphid
PIN 4210/7576
 Hemiptera - Oviparosiphidae
Vitimaphis sp.29 Shaposhnikov and Wegierek 1989 aphid
PIN 4210/2516(2518), 2546, 4477
 Hemiptera - Szelegiewicziidae
Brimaphis certa27 Wegierek 1989 aphid
PIN 4210/4675
 Hemiptera - Hylicellidae
Vietocycla peregrina22 Shcherbakov 1988 true bug
PIN 4210/1016-1018
 Hemiptera - Saldidae
Baissotea infanta n. gen. n. sp.20
Baissotea infanta n. gen. n. sp.20 Ryzhkova 2015 shore bug
PIN 4210/2063(2069), 1646, 1905, 2013, 2029, 5731, 5736, 5738, 5740, 6722, 1655 and 30 elytra
 Blattaria - Umenocoleidae
Petropterix sibirix25 Vršanský 2003 cockroach
PIN 4210/1439
 Blattodea - Mesoblattinidae
Archimesoblatta altera26 Vršanský 1997 cockroach
PIN 421/1328, 1370
 Blattodea - Ectobiidae
Piniblattella vitimica24 Vishnyakova 1964 cockroach
 Hymenoptera - Embolemidae
Baissobius minutus n. sp.15, Embolemopsis baissensis n. gen. n. sp.15
Baissobius minutus n. sp.15 Olmi et al. 2010 wasp
PIN 4210/1203
Embolemopsis baissensis n. gen. n. sp.15 Olmi et al. 2010 wasp
PIN 4210/7095
 Hymenoptera - Pelecinidae
? Iscopinus suspectus n. sp. Zhang and Rasnitsyn 2004 wasp
PIN 4210/5240
Iscopinus simplex n. sp. Zhang and Rasnitsyn 2004 wasp
PIN 4210/5239
Scorpiopelecinus laetus n. sp. Zhang and Rasnitsyn 2004 wasp
PIN 4210/6938
Eopelecinus rudis n. sp. Zhang and Rasnitsyn 2004 wasp
PIN 4210/1173
Eopelecinus scorpioideus n. sp. Zhang and Rasnitsyn 2004 wasp
PIN 4210/5242
Eopelecinus exquisitus n. sp. Zhang and Rasnitsyn 2004 wasp
PIN 4210/1171
Protopelecinus furtivus n. sp. Zhang and Rasnitsyn 2004 wasp
PIN 4210/7069
 Hymenoptera - Archaeocynipidae
Archaeocynips villosa n. gen. n. sp.19
Archaeocynips villosa n. gen. n. sp.19 Rasnitsyn and Kovalev 1988 wasp
PIN 4210/368
 Hymenoptera - Anaxyelidae
Anaxyelidae indet.6 Martynov 1925 winged insect
PIN 4210/5235
Parasyntexis sp.6 Kopylov 2019 winged insect
PIN 4210/1843
 Hymenoptera - Sepulcidae
Ghilarella masculina n. sp.7 Kopylov and Rasnitsyn 2017 stem sawfly
PIN 4210/5234
 Coleoptera - Lasiosynidae
Lasiosyne decora28 Yan 2012 beetle
PIN 4210/672
 Coleoptera - Cerophytidae
"Baissophytum convexus n. gen. n. sp." = Baissophytum convexum1, "Baissophytum amplus n. sp." = Baissopsis ampla1
"Baissophytum convexus n. gen. n. sp." = Baissophytum convexum1 Chang et al. 2011 beetle
PIN 4210/5481; layer not specified
"Baissophytum amplus n. sp." = Baissopsis ampla1 Chang et al. 2011 beetle
PIN 4210/5915; layer not specified
 Coleoptera - Nitidulidae
Crepuraea explanata n. sp.5 Kirejtshuk 1990 sap beetle
PIN 4210/720
 Coleoptera - Nemonychidae
Cretonemonyx profligatus n. gen. n. sp.2 Gratshev and Legalov 2009 pine flower snout beetle
PIN 4210/729
Cretonemonyx longirostris n. sp.2 Gratshev and Legalov 2009 pine flower snout beetle
PIN 4210/7259
Pseudonemonyx stupendus n. gen. n. sp.2 Gratshev and Legalov 2009 pine flower snout beetle
PIN 4210/7065
 Coleoptera - Brentidae
Baissorhynchus tarsalis9 Zherikhin 1977 weevil
PIN 4210/5918, 5919, 5923, 5924, 5926, 725, 727, 728
Testudobrenthorrhinus taetricus n. gen. n. sp.8 Gratshev and Legalov 2011 weevil
PIN 4210/5917 (5920, 5922, 5925, 7067, 723, 7257, 7261, 7262, 730 in Legalov 2015)
Baissabrenthorhinus mirabilis n. gen. n. sp.9 Legalov 2015 weevil
PIN 4210/5921
 Coleoptera - Lucanidae
Penichrolucanus kabakovi n. sp.14 Nikolajev 2010 stag beetle
PIN 4210/7269
 Coleoptera - Scarabaeidae
Aphodius cretaceous n. sp.13 Nikolajev 2008 scarab beetle
PIN 4210/6411
 Coleoptera - Carabidae
Antemnacrassa vitimensis12 Nikritin 1977 ground beetle
PIN 4210/5463
Antemnacrassa picturata12 Nikritin 1977 ground beetle
PIN 4210/703, 704
 Coleoptera - Dytiscidae
Palaeodytes baissiensis n. sp.18 Prokin et al. 2013 predaceous diving beetle
PIN 4210/380
 Siphonaptera - Saurophthiridae
Saurophthirus longipes23 Ponomarenko 1976 flea
PIN 4210/6965
 Diptera - Ptychopteridae
"Proptychoptera cretacea" = Eoptychoptera cretacea4, Eoptychopterina sp.10, Doptychoptera baisica n. gen. n. sp.11
"Proptychoptera cretacea" = Eoptychoptera cretacea4 Kalugina 1989 phantom crane fly
PIN 4210/3500
Eoptychopterina sp.10 Kalugina 1985 phantom crane fly
PIN 4210/3342
Doptychoptera baisica n. gen. n. sp.11 Lukashevich 1998 phantom crane fly
PIN 4210/3761
 Dicondylia -
Raphidioptera indet.17 Handlirsch 1908 snakefly
PIN 4210/2217, 2232
 Raphidioptera - Mesoraphidiidae
Baisoraphidia sp.17, Baisoraphidia glossopteron n. gen. n. sp.17, "Siboptera medialis n. sp." = Mesoraphidia medialis17, Alloraphidia asiatica n. sp.17, Archeraphidia baisensis17, "Alloraphidia deserta" = Pararaphidia deserta17
Baisoraphidia sp.17 Ponomarenko 1993 snakefly
PIN 4210/2220
Baisoraphidia glossopteron n. gen. n. sp.17 Ponomarenko 1993 snakefly
PIN 4210/2215
"Siboptera medialis n. sp." = Mesoraphidia medialis17 Ponomarenko 1993 snakefly
PIN 4210/2230
Alloraphidia asiatica n. sp.17 Ponomarenko 1993 snakefly
PIN 4210/2229
Archeraphidia baisensis17 Ponomarenko 1993 snakefly
PIN 4210/2233
"Alloraphidia deserta" = Pararaphidia deserta17 Ponomarenko 1988 snakefly
PIN 4210/2231
 Raphidioptera - Baissopteridae
Baissoptera elongata n. sp.17 Ponomarenko 1993 snakefly
PIN 4210/2221
Baissoptera sibirica17 Ponomarenko 1993 snakefly
PIN 4210/2223, 2224
Baissoptera martinsoni17 Martynova 1961 snakefly
PIN 4210/2213, 2214, 2219
Cretoraphidia macrocella n. sp.17 Ponomarenko 1993 snakefly
PIN 4210/2218
 Neuroptera - Nymphidae
Cretonymphes baisensis16 Ponomarenko 1992 split-footed lacewing
PIN 4210/2202, 2211
Arachnida
 Araneae - Theridiosomatidae
Eocoddingtonia eskovi21 Selden 2010 ray spider
PIN 4210/5461, 5462, 5463