Khasurty locality

Fossil locality in Russia From Wikipedia, the free encyclopedia

The Khasurty locality is an Early Cretaceous (Neocomian) lagerstätte in Russia, within the Sangin Formation. This lagerstätte is located outside the village of Tsakir in the region of Zakamensk. Over 6,000 insect specimens have been found from the site, belonging to around 130 families. Its insect biota resembles both Jurassic and Cretaceous ones, most heavily the Jehol biota of China.[1]

Unit ofGusinoe Ozero Group
CountryRussia
Named forKhasurty River
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Khasurty locality
Stratigraphic range: Neocomian
Unit ofGusinoe Ozero Group
Location
RegionZakamensky District
CountryRussia
Type section
Named forKhasurty River
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Paleobiota

Non-Insecta

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Non-insect organisms
Genus Species Higher taxon Notes Images
Palaeoeorak P. scherbakovi Prochydorusidae (Anomopoda)[2] Only named crustacean from Khasurty[1]
The extant anomopod Daphnia magna
Bryokhutuliinia B. obtusifolia Hookeriales? Indeterminate family[3]
Khasurtya K. ginkgoides Marchantiidae Specific name comes from the similarity in leaf shape to the ginkgo[1]
Khasurtythallus K. monosolenioides Marchantiidae Likely an extinct clade of liverworts[4]
Palaeodichelyma P. sinitzae Hypnanae (pleurocarpous mosses) Also known from the Jurassic of Russia[3]
Tricostium T. longifolium Bryophyta incertae sedis Similar to a species found ~2000 km to the east[3]
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Insects

Palaeopterans

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Palaeopterans
Genus Species Higher taxon Notes Images
Baikalogenites B. firmus Hexagenitidae (Ephemeroptera) Bears a longer seventh gill pair[5]
Epiproctophora spp. Unapplicable Odonata Known from several unnamed species, most seemingly within Isophlebiidae or Campterophlebiidae[1]
Isophlebia aspasia specimen from the Jurassic of Germany
Furvoneta F. khasurtensis Mesonetidae (Ephemeroptera) Largest member of the genus[5]
Mesobaetis M. crispa Siphlonuridae Similar to the species M. amplectus, but has a larger rib on its gill plates[5]
Mesogenesia M. sp Mickoleitiidae Only known from a poorly preserved specimen[5]
Larva of the closely related Mickoleitia
Proameletus P. branchiatus Siphlonuridae Bears larger gills than the type species[5]
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Polyneopterans

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Polyneopterans
Genus Species Higher taxon Notes Images
Aboilus? A?. khasurty Prophalangopsidae Differs from Aboilus in wing venation, but still fairly close to it[1]
Pycnophlebia fossil from Jurassic Germany
Archisusumania A. contacta Susumanioidea Differs from other genera in wing venation[1]
Three specimens of the closely related Cretophasmomima from China
Dimoula D. khasurtensis Nemouridae One of the few extinct nemourids known[6]
Nemoura cinerea, an extant nemourid
Jurataenionema J. rohdendorfi Taeniopterygidae Known from a complete female specimen[6]
Taeniopteryx nebulosa, an extant taeniopterygid
Mongoloxya M. fossor Tridactylidae Differs from the other species in the genus by having digging-adapted forelimbs[1]
An unidentified extant tridactylid from India
Rasnitsyrina R. culonga, R. desiliens Perlariopseidae (Plecoptera) Most abundant stonefly from the site[6]
Shurabia S. creta Geinitziidae Latest known winged notopteran besides those known from Burmese amber[1]
Siberoperla S. bashkuevi Peltoperlidae Oldest peltoperlid, alongside the first fossil of a nymph from the family[7]
An indeterminate peltoperlid nymph
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Paraneopterans

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Paraneopterans
Genus Species Higher taxon Notes Images
Buryatocera B. beta Kobdocoridae (Pentatomoidea) Has relatively short antennae[8]
Creocanadaphis C. hirtus Canadaphididae Abdomen bears numerous small spines on sclerites[1]
Extralapis E. carens, E. breviscutum Kobdocoridae Intermediate between the two other kobdocorid genera from Khasurty in pronotum (top-front section of thorax) proportions[8]
Khasuaphis K. serotinus Juraphididae Bears longer antennae than other members of its family[1]
Khasoris K. yuripopovi Kobdocoridae (Pentatomoidea) Bears a very long ovipositor[8]
Liadopsylla L. (Basicella) lauteri, L. (Basicella) loginovae Liadopsyllidae Type genus of the family[9]
Occidoscelis O. glaber Anthocorinae One of the only fossil anthocorids known[1]
Anthocoris nemorum, an extant anthocorine bug
Reticycla R. drospoulosi Hylicellidae (Cicadomorpha) Has a smaller ovipositor and a different foreleg structure to most other hylicellids[9]
Stigmapsylla S. klimaszewskii Liadopsyllidae Bears a dark pterostigma[9]
Holotype of Amecephala pusilla, a different liadopsyllid from Burmese amber
Tobleronothrips T. deparis Aeolothripidae Named for Toblerone chocolate, which "noticeably helps when identifying complex imprints of thrips"[1]
The modern Erythrothrips, another aeolothripid species
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Holometabola

Hymenopterans
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Hymenopterans
Genus Species Higher taxon Notes Images
Amplicella A. mininae, A. bashkuyevi, A. shcherbakovi, A. minor[10] Tanychorinae (Ichneumonidae) Has a dark body with lighter legs/wing veins[11]
Tanychora petiolata fossil from the Zaza Formation
Ghilarella G. kopylovi[12] Sepulcidae Originally placed within G. mercurialis, as it only differed from the type of that species in wing colouration[13]
Hymenoptera spp. Unapplicable Holometabola Includes numerous undescribed species from within various families like Angarosphecidae, Megalyridae and Proctotrupidae[1]
Khasips K. alisecta, K. sculpta, K. kovalevi Archaeocynipidae (Cynipoidea) K. kovalevi has clubbed antennae, K. sculpta has an unusual pattern on its thorax[14]
Khasurtella K. buryatica Tanychorinae (Ichneumonidae) Genus also contains a former Tanychora species[11]
Micramphilius M. mirabilipennis Sepulcidae First member of its genus which preserves the hind wings[15]
Onokhoius O. venustus Sepulcidae Bears a dark band on its pterostigma[15]
Pamparaphilius P. khasurtensis Sepulcidae Holotype wing has numerous unusual veins, likely as a result of mutation[15]
Parasyntexis P. khasurtensis Anaxyelidae[16]
Praeichneumon P. dzhidensis, P. khamardabanicus, P. zakhaaminicus Praeichneumonidae Known from several mostly complete specimens[17]
Sclerostigma S. trimaculata Dolichostigmatinae (Anaxyelidae) Species name means "three-spotted", as its abdominal tergites have patterns of three spots[1]
Trematothorax T. zhangi, T. brachyurus, T. extravenosus Sepulcidae Another distinct species is known, however the material is too poor to name a new taxon[13]
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Neuropteridans
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Neuropteridans
Genus Species Higher taxon Notes Images
Aberrantochrysa A. buryatica, A. pulchella Chrysopidae[18]
Cretohondelagia C. viridis Priscaenigmatidae (Raphidioptera) Youngest priscaenigmatid fossil known[19]
Dzhidosmylus D. solus Osmylidae Uncertain subfamily[1]
Khasurtoberotha K. bellissima Berothidae Similar to the modern Protobiella[1]
A specimen of the extant berothid Protobiella
Mesypochrysa M. cannabina, M. naranica Chrysopidae[18]
Osmylochrysa O. navasia Osmylidae Previously only known from England, resembles chrysopid lacewings[1]
Zakamnosmylus Z. elongatus Osmylidae Similar to the Jurassic Ensiosmylus[1]
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Coleopterans
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Coleopterans
Genus Species Higher taxon Notes Images
Coleoptera spp. Unapplicable Coleoptera Contains many undescribed species in families such as Staphylinidae and Scarabaeidae[1]
Coptoclava C. longipoda Coptoclavidae May not actually belong to the species[1]
Coptoclava larva from the Jinju Formation
Distenorrhinus D. (Buryatnemonyx) ovatus, D. (Buryatnemonyx) gratshevi Nemonychidae Another undescribed species bears very large eyes[1]
Gracilicupes G. minimus Cupedidae Much smaller than other species of the genus[20]
Jurodes J. shef Jurodidae Similar to Jurodes from Daohugou[21]
Fossil of Jurodes
Notocupes N. khasurtyiensis Archostemata incertae sedis Has larger eyes and a shorter first abdominal segment than other species in the genus[20]
Several Notocupes specimens from Jurassic China alongside mid-Cretaceous Burmese amber
Palaeonecrophilus P. buryaticus Agyrtidae Earliest known agyrtid beetle[22]
The extant agyrtid Necrophilus subterraneus
Ponohydrochus P. buryaticus Hydrochidae First fossil hydrochid genus[23]
An extant Hydrochus beetle
Unda U. popovi Trachypachidae Also known from the Jurassic[24]
The extant trachypachid Trachypachus gibbsii
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Mecopterans
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Mecopterans
Genus Species Higher taxon Notes Images
Antiquanabittacus A. dispar, A. robustus, A. saltator Bittacidae Similar to extant Orobittacus[25]
The extant bittacid Bittacus selysi
Itaphlebia I. spp Nannochoristidae Known from very well-preserved material, however the difficult diagnosis of Itaphlebia species means the Khasurty species have not been named[1]
The extant nannochoristid Nannochorista philpotti
Lichnomesopsyche L. sp Mesopsychidae Only known from one wing[1]
Complete specimen of L. daohugouensis from Jurassic China
Meropeidae spp. Unapplicable Mecoptera Known from two different species each with a complete specimen, unusual for meropeids (which rarely fly)[1]
The extant meropeid Merope tuber
Mesochorista M. sp Permochoristidae (related to Nannochoristidae) Formerly known as "Yanorthophlebia", which is a synonym of "Liassochorista" and in turn Mesochorista[26]
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Dipterans
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Dipterans
Genus Species Higher taxon Notes Images
Amorimyia A. robusta Anisopodidae Differs from related genera in its hairy head and larger size[27]
Collessomma C. sibirica, C. gnoma Perissommatidae Unlike modern perissommatids, this genus has fused (holoptic) eyes[28]
The extant perissommatid Perissomma mcalpinei
Eoptychoptera E. fasbenderi Ptychopteridae Distinguished from other species in its genus by an additional cross-vein on the wing[27]
The extant ptychopterid Ptychoptera contaminata
Gilkania G. transbaikalica Podonominae (Chironomidae) Only known from pupal exuvia[27]
Juraxymyia J. krzeminskii Axymyiidae Also known from Daohugou[29]
The extant axymyiid Axymyia furcata
Kaluginamyia K. enigmatica Kaluginamyiidae (Chironomoidea) Placed in its own family[30]
Kovalevimyia K. sp Simuliidae One of the earliest hematophagous fly fossils, likely fed on birds[1]
Mangas M. brevisubcosta, M. kovalevi Bolitophilidae Also known from Mongolia[31]
The extant bolitophilid Bolitophila cinerea
Praearchitipula P. kaluginae, P. podenasi, P. ribeiroi[27] Pediciidae Relatively large for pediciids[1]
The extant pediciid Pedicia margarita
Protanyderus? P. madrizi Tanyderidae May not belong to the genus[27]
Sinaxymyia S. szadziewskii Axymyiidae Also known from Daohugou[29]
Zhiganka Z. longialata Ptychopteridae Known from complete specimens[32]
The extant ptychopterid Bittacomorpha clavipes
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Amphiesmenopterans
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Amphiesmenopterans
Genus Species Higher taxon Notes Images
Axiomaldia A. flinti Trichoptera Uncertain family[1]
Buranima B. gorhon Psychomyiidae Differs from other genera in having a maxillary palp without a longer second segment[1]
The extant psychomyiid Tinodes waeneri
Burimodus B. novus Vitimotauliidae (Trichoptera)[33]
Buryatocentrus B. suspiciosus Yantarocentridae (Limnephiloidea) Has two-segmented gonopods[1]
Cretocrania C. stekolnikovi, C. glossancestralis, C. inconcessa Cretocraniinae (Eriocraniidae) Differs from modern eriocraniids in having round wing tips and very long galeae[1]
The extant eriocraniid Eriocrania semipurpurella
Dauroglos D. hohlomak Glossosomatidae Similar to the genus Dajella[1]
The extant Glossosoma intermedium
Duamodus D. anichkovi, D. necessarius Vitimotauliidae (Integripalpia) Similar to Multimodus[1]
Dysoneura D. subbota Dysoneuridae Specific name derives from the Russian word for "Saturday"[1]
Khasurtia K. kopylovi, K. alexeii, K. lukashevichae, K. novissima[1] Dysoneuridae A fairly diverse caddisfly genus, almost entirely known from Khasurty[34]
Juraphilopotamus J. callidus Philopotamidae Has small dark spots on forewing[33]
The extant philopotamid Philopotamus montanus
Meloclada M. diuturna, M. frequentatoria Cladochoristidae (Trichoptera) Similar to the related Cladochoristella[1]
Mesocolepus M. deflectum Ptilocolepidae (Hydroptiloidea) Bears large setal warts, with their shape used to distinguish the genus[1]
Multimodus M. amplus Vitimotauliidae (Trichoptera) Largest species of the genus[33]
Palaeosiberomiya P. zugzwanga Dysoneuridae Bears longitudinal stripes of dark scales on its wings[1]
Protobaikalopsyche P. rossica Protobaikalopsychidae (Hydropsychoidea) Likely basal to a clade including Polycentropodidae[1]
Protorodinia P. khasurtensis Leptoceridae Bears a large mesoscutum and unusual abdominal tip[1]
The extant leptocerid Leptocerus tineiformis
Protosiberopteryx P. antitheton, P. equesaeneus, P. praevernalis Eolepidopterigidae Known from one male and two female specimens, similar to Undopterix[1]
Purbimodus P. parvulus, P. khramovi Vitimotauliidae (Trichoptera) Redescribed in a 2021 paper[35]
Sententimiya S. wichardi Psychomyiidae Bears a plate on the fifth sternite similar to those on psychomyiids[1]
Shadareniskia S. inambularia Hydrobiosidae Known from a female specimen, as shown by the genitalia and a suture on the sixth sternite[1]
The (male) holotype of the extant Hydrobiosis falcis
Siberocretopetus S. ekaterinae Glossosomatidae Specific name honours Ekaterina Sidorchuk, a palaeoacarologist (researcher who studies fossil mites) who died in 2019[1]
The extant agapetine glossosomatid Agapetus fuscipes
Siberoprostoria S. archaeoscriptor Hydrobiosidae Known from a female specimen, as shown by the genitalia and a suture on the sixth sternite[1]
Styxowia S. predponimania Polycentropodidae Has large, spiny gonopods[1]
The extant polycentropodid Polycentropus flavomaculatus
Susurimiya S. transbaikalica Psychomyiidae Bears a swollen abdomen tip like modern psychomyiids, but differs in the structure of its maxillary palps[1]
Terminoptysma T. contradictoria Terminoptysmatidae (Trichoptera) Placed in its own monotypic family[1]
Terrindusia T. khasurtica, T. buriatica Trichoptera Known only from larval casings[34]
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