Biology:Zygadenia

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Zygadenia is an extinct genus of archostematan beetles from the Early Jurassic to Early Cretaceous. It is considered to be a senior synonym of Notocupes by Kirejtshuk (2020),[1] 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.[2][3][4]

Eleven species are included in the genus, after Strelnikova and Yan (2021, 2023).[2][3] Kirejtshuk (2020) notes that the two Lower Jurassic Australian species Z. westraliensis and Z. martinae possibly merit placement in their own separate genus.[1]

Jurassic species

Hettangian-Sinemurian (201.4 Ma to 192.9 Ma)

Xiaomeigou Formation, China[5][lower-alpha 1]
  • Z. dachaidanensis Song et al., 2024
  • Z. haixiensis Song et al., 2024

Sinemurian-Toarcian (199.5 Ma to 174.1 Ma)

Cattamarra Coal Measures, Australia[6]
  • Z. martinae Jarzembowski et al., 2015
  • Z. westraliensis Riek, 1968

Tithonian (152.1 Ma to 145.0 Ma)

Shar Teeg, Mongolia
  • Z. giebeli Ponomarenko, 2014
  • Z. handlirschi Ponomarenko, 2014

Cretaceous species

Berriasian (145.0 Ma to 139.8 Ma)

Lulworth Formation, United Kingdom
  • Z. angliae (Giebel, 1856)
  • Z. tuberculata (Giebel, 1856)

Hauterivian (132.9 Ma to 129.4 Ma)

Weald Clay, United Kingdom
  • Z. angliae (Giebel 1856)
  • Z. floodpagei Jarzembowski et al., 2015
  • Z. simpsoni Jarzembowski et al., 2015

Barremian (129.4 Ma to 125.0 Ma)

Sinuiju Formation, North Korea
  • Z. liui Jarzembowski et al., 2015
Weald Clay, United Kingdom
  • Z. angliae (Giebel, 1856)
  • Z. floodpagei Jarzembowski et al., 2015
  • Z. tuberculata (Giebel, 1856)
  • Z. simpsoni Jarzembowski et al., 2015

Aptian (125.0 to ~113.0 Ma)

Argun Formation, Russia
  • Z. sinitzae Ponomarenko, 2000
Sinuiju Formation, North Korea
  • Z. liui Jarzembowski et al., 2015
Yixian Formation, China
  • Z. liui Jarzembowski et al., 2015
Zaza Formation, Buryatia, Russia
  • Z. alexrasnitsyni Strelnikova & Yan, 2021

Albian (113.0 Ma to 100.5 Ma)

Jinju Formation, South Korea[7]
  • Z. cornigera Lee et al., 2023

Notes

  1. ↑ These are body fossils treated as Zygadenia sensu lato following Kirejtshuk (2020), with Notocupes treated as a synonym.

References

  1. ↑ 1.0 1.1 Kirejtshuk, Alexander G. (2020). "Taxonomic Review of Fossil Coleopterous Families (Insecta, Coleoptera). Suborder Archostemata: Superfamilies Coleopseoidea and Cupedoidea". Geosciences 10 (2): 73. doi:10.3390/geosciences10020073. ISSN 2076-3263. Bibcode: 2020Geosc..10...73K. 
  2. ↑ 2.0 2.1 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. http://treatment.plazi.org/GgServer/summary/CB3FFFAC9132FFE2183F0445FF8DFF92. 
  3. ↑ 3.0 3.1 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. https://tb.plazi.org/GgServer/summary/4F27FFD5FFA0FFE11A50FF98FFDD191C. 
  4. ↑ 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. doi:10.1016/j.cretres.2022.105357. Bibcode: 2022CrRes.14005357L. 
  5. ↑ Song, Z.-Y.; Jarzembowski, E. A.; Xiao, C.-T.; Yang, A.-Y. (2024). "New Jurassic notocupedins (Coleoptera: Archostemata: Ommatidae) from the Qinghai-Xizang (Tibetan) Plateau". Palaeoworld 34 (4). doi:10.1016/j.palwor.2024.09.002. 
  6. ↑ Jarzembowski, Edmund A.; Wang, Bo; Zhang, Haichun; Fang, Yan (January 2015). "Boring beetles are not necessarily dull: New notocupedins (Insecta: Coleoptera) from the Mesozoic of Eurasia and East Gondwana". Cretaceous Research 52: 431–439. doi:10.1016/j.cretres.2014.03.006. ISSN 0195-6671. 
  7. ↑ Lee, S.B.; Nam, G.S.; Park, J.K.; Lee, B.H.; Li, Y.-D. (2023). "Cretaceous beetles of the Jinju Formation (Coleoptera): Archostemata". Palaeoentomology 6 (5): 496–506. doi:10.11646/PALAEOENTOMOLOGY.6.5.8. 

Wikidata ☰ Q8075747 entry