Notocupes
Temporal range: Ladinian–Turonian
Various specimens of Notocupes from the Middle Jurassic of China and mid-Cretaceous Burmese amber
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Coleoptera
Suborder: Archostemata
Family: incertae sedis
Genus: Notocupes
Ponomarenko, 1964
Synonyms
  • Sinocupes Lin, 1976
  • Chengdecupes Hong, 1983
  • ?Conexicoxa Lin, 1986
  • Echinocups Kirejtshuk and Jarzembowski, 2020
  • Amblomma Tan et al., 2005
  • Ovatocupes Tan and Ren, 2006

Notocupes is an extinct genus of medium-sized archostematan beetles from the Mesozoic Era of Eurasia, including over 50 described species. Historically, the genus was classified as a member of the family Ommatidae, but the presence of characters such as the horizontal mandibular cutting edge, separated procoxae and overlapping abdominal sternites indicate that the genus may have a closer affinity with the family Cupedidae.[1] Notocupes is considered to be a junior synonym of Zygadenia by Kirejtshuk (2020),[2] but other researchers suggest to reserve the genus Zygadenia as a form taxon for isolated elytra that probably belong to the genus Notocupes, while retaining Notocupes as a valid genus for complete body fossils.[3][4][5] Most species of Notocupes were described from compression fossils. An additional three species were described from Cenomanian-aged Burmese amber, which were treated as a separate genus, Echinocups, by Kirejtshuk (2020), but Li et al. (2023) consider Echinocups to be a junior synonym of Notocupes.[6] Notocupes has a flattened body, which may suggest that it occupied narrow habitats, such as living under bark. Some species had serrated/spined margins of the carapace, which may have served as a defense against predators, or served as camouflage to resemble bark.[1]

Strelnikova & Yan (2023) advise splitting up the genus Notocupes into four genera: Notocupes, Rhabdocupes, Conexicoxa and the new genus Brachilatus.[7]

Triassic species

Ladinian (242 Ma to ~237 Ma)

Tongchuan Formation, China

Carnian (237 Ma to 227 Ma)

Koldzat Formation, Kazakhstan
Madygen Formation, Kyrgyzstan

Jurassic species

Hettangian (201.3 Ma to 199.3 Ma)

Dzhil Formation, Kyrgyzstan
Guanyintan Formation, China

Toarcian (182.7 Ma to 174.1 Ma)

Guanyintan Formation, China
Sulyukta Formation, Kyrgyzstan

Bajocian (170.3 Ma to 168.3 Ma)

Bakhar Formation, Mongolia

Callovian (166.1 Ma to 163.5 Ma)

Haifanggou Formation, China
Tyumen Formation, Russia

Oxfordian (163.5 Ma to 157.3 Ma)

Karabastau Formation, Kazakhstan

Tithonian (152.1 Ma To 145.0 Ma)

Shar Teeg, Mongolia
Solnhofen, Germany

Cretaceous species

Hauterivian (132.9 Ma to 129.4 Ma)

Dabeigou Formation, China

Barremian (129.4 Ma to 125.0 Ma)

Jianshangou Formation, China
La Huérguina Formation, Las Hoyas, Spain
La Pedrera de Rúbies Formation, Las Hoyas, Spain
Ulan-Argalant Formation, Mongolia

Aptian (125.0 to ~113.0 Ma)

Argun Formation, Russia
Baojiatun Formation, China
Dzun-Bain Formation, Mongolia
Jehol Group, China
Khasurty Formation, Russia
Laiyang Formation, China
Shahai Formation, China
Yixian Formation, China
Zaza Formation, Russia

Albian (~113.0 to 100.5 Ma)

Jinju Formation, South Korea

Cenomanian (100.5 to 93.9 Ma)

Burmese amber, Myanmar

Turonian (93.9 to 89.8 Ma)

Emanra Formation, Russia
Kzyl-Zhar Locality, Kazakhstan

References

  1. ^ a b Li, Yan-Da; Tihelka, Erik; Yamamoto, Shûhei; Newton, Alfred F.; Xia, Fang-Yuan; Liu, Ye; Huang, Di-Ying; Cai, Chen-Yang (2023-08-22). "Mesozoic Notocupes revealed as the sister group of Cupedidae (Coleoptera: Archostemata)". Frontiers in Ecology and Evolution. 11. doi:10.3389/fevo.2023.1015627. ISSN 2296-701X.
  2. ^ Kirejtshuk, Alexander G. (2020). "Taxonomic Review of Fossil Coleopterous Families (Insecta, Coleoptera). Suborder Archostemata: Superfamilies Coleopseoidea and Cupedoidea". Geosciences. 10 (2): 73. Bibcode:2020Geosc..10...73K. doi:10.3390/geosciences10020073. ISSN 2076-3263.
  3. ^ Strelnikova, O.D.; Yan, E.V. (2021). "Redescriptions of beetles of the Notocupes generic complex (Coleoptera: Archostemata: Ommatidae) from the Lower Cretaceous of Buryatia". Palaeoentomology. 4 (5): 499–514. doi:10.11646/palaeoentomology.4.5.15. S2CID 240527664.
  4. ^ Strelnikova, O.D.; Yan, E.V. (2023). "Redescriptions of the Triassic Notocupes beetles (Archostemata: Ommatidae) from Kyrgyzstan and South Kazakhstan". Palaeoentomology. 6 (2): 174–190. doi:10.11646/palaeoentomology.6.2.9. S2CID 258403180.
  5. ^ Soo Bin Lee; Gi Soo Nam; Yan-Da Li (2022). "A new species of Notocupes (Coleoptera: Archostemata) from the Lower Cretaceous (Albian) Jinju Formation in South Korea". Cretaceous Research. 140: 105357. Bibcode:2022CrRes.14005357L. doi:10.1016/j.cretres.2022.105357. S2CID 252147645.
  6. ^ Li, Y.-D.; Tihelka, E.; Newton, A. F.; Huang, D.-Y.; Cai, C.-Y. (2023). "New species of Notocupes (Coleoptera: Archostemata) from the Middle Jurassic Daohugou beds, with discussion on the generic circumscription". Palaeoentomology. 6 (4): 398–415. doi:10.11646/palaeoentomology.6.4.11.
  7. ^ Strelnikova, O.D.; Yan, E.V. (2023). "On splitting of the genus Notocupes (Coleoptera: Archostemata): new data on morphology and taxonomy". Far Eastern Entomologist. 488: 1–28. doi:10.25221/fee.488.1.