Zygadenia

Zygadenia is an extinct genus of beetles in the family Ommatidae.

Zygadenia Temporal range: Ladinian–Turonian PreꞒ Ꞓ O S D C P T J K Pg N
Zygadenia aliena (left) and Zygadenia minuscula (centre, right)
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Coleoptera
Suborder:	Archostemata
Family:	Ommatidae
Genus:	Zygadenia Handlirsch, 1906
Synonyms
Amblomma Tan et al. 2005 Camtodontus Dejean 1826 Chengdecupes Hong 1983 Conexicoxa Lin 1986 Forticupes Hong and Wang 1990 Kakoselia Handlirsch 1906 Kakozelia Handlirsch 1906 Notocupes Ponomarenko 1964 Ovatocupes Tan and Ren 2006 Picticupes Hong and Wang 1990 Sinocupes Lin 1976

Species

After Kirejtshuk, 2020. Kirejtshuk notes that the two Lower Jurassic Australian species Z. westraliensis and Z. martinae possibly merit placement in their own separate genus.[1]

• †Zygadenia aliena (Tan and Ren 2006) Yixian Formation, China, Aptian
• †Zygadenia angliae (Giebel 1856) Purbeck Group, United Kingdom, Berriasian, Weald Clay, United Kingdom, Barremian
• †Zygadenia brachycephalus (Ponomarenko, 1994) Bakhar Formation, Mongolia, Bajocian, Shar Teeg, Mongolia, Tithonian
• †Zygadenia caducus (Ponomarenko, 1969) Kzyl-Zhar, Kazakhstan, Turonian
• †Zygadenia caudatus (Ponomarenko, 1966) Zaza Formation, Russia, Aptian
• †Zygadenia cellulosus (Ponomarenko, 1969) Dzhil Formation, Kyrgyzstan, Hettangian-Sinemurian
• †Zygadenia crassus (Ponomarenko, 1969) Sulyukta Formation, Kyrgyzstan, Toarcian
• †Zygadenia diazromerali Soriano & Delclòs, 2006 Las Hoyas, Spain, Barremian
• †Zygadenia dischides (Zhang 1986) Jiulongshan Formation, China, Callovian
• †Zygadenia dundulaensis (Ponomarenko, 1994) Dzun-Bain Formation, Mongolia, Aptian
• †Zygadenia elegans (Ponomarenko, 1994) Dzun-Bain Formation, Mongolia, Aptian
• †Zygadenia epicharis (Tan et al. 2005) Yixian Formation, China, Aptian
• †Zygadenia eumeura (Tan et al. 2006) Yixian Formation, China, Aptian
• †Zygadenia excellens (Ponomarenko, 1966) Zaza Formation, Russia, Aptian
• †Zygadenia exiguus (Ponomarenko, 1994) Bakhar Formation, Mongolia, Bajocian, Shar Teeg, Mongolia, Tithonian
• †Zygadenia floodpagei Jarzembowski et al. 2015 Weald Clay, United Kingdom, Hauterivian-Barremian
• †Zygadenia foersteri (Ponomarenko, 1971) Karabastau Formation, Kazakhstan, Oxfordian
• †Zygadenia giebeli Ponomarenko 2014 Shar Teeg, Mongolia, Tithonian
• †Zygadenia handlirschi Ponomarenko 2014 Shar Teeg, Mongolia, Tithonian
• †Zygadenia homorus (Lin, 1986) Guanyintan Formation, China, Hettangian
• †Zygadenia issykkulensis (Ponomarenko, 1969) Dzhil Formation, Kyrgyzstan, Hettangian-Sinemurian
• †Zygadenia jurassica Hong 1983 Jiulongshan Formation, China, Callovian
• †Zygadenia kezuoensis Hong 1987 Shahai Formation, China, Aptian
• †Zygadenia khasurtyiensis (Strelnikova 2019) Khasurty, Russia, Aptian
• †Zygadenia khetanensis (Ponomarenko in Cromov et al., 1993) Emanra Formation, Russia, Turonian
• †Zygadenia kirghizicus (Ponomarenko, 1969) Dzhil Formation, Kyrgyzstan, Hettangian-Sinemurian
• †Zygadenia laetus (Lin, 1976) Jianshangou Formation, China, Barremian
• †Zygadenia laiyangensis (Hong, 1990) Laiyang Formation, China, Aptian
• †Zygadenia lapidarius (Ponomarenko, 1968) Karabastau Formation, Kazakhstan, Oxfordian
• †Zygadenia laticella (Ponomarenko, 1969) Madygen Formation, Kyrgyzstan, Carnian
• †Zygadenia latus (Ponomarenko, 1969) Dzhil Formation, Kyrgyzstan, Hettangian-Sinemurian
• †Zygadenia lentus (Ren, 1995) Dabeigou Formation, China, Hauterivian
• †Zygadenia lini (Ponomarenko et al. 2012) Guanyintan Formation, China Toarcian/Aalenian
• †Zygadenia liui Jarzembowski et al. 2015 Yixian Formation, China, Aptian
• †Zygadenia longicollis (Ponomarenko, 1994) Bakhar Formation, Mongolia, Bajocian
• †Zygadenia longicoxa Soriano & Delclòs, 2006 Las Hoyas, Spain, Barremian
• †Zygadenia ludongensis (Wang and Liu 1996) Laiyang Formation, China, Aptian
• †Zygadenia martinae Jarzembowski et al. 2015 Cattamarra Coal Measures, Australia, Toarcian
• †Zygadenia martinclosas Soriano & Delclòs, 2006 La Pedrera de Rúbies Formation, Las Hoyas, Spain, Barremian
• †Zygadenia miniscula Tan et al. 2006, Yixian Formation, China, Aptian
• †Zygadenia mongolicus (Ponomarenko, 1994) Ulan-Argalant Formation, Mongolia, Barremian
• †Zygadenia nigromonticola (Ponomarenko, 1968) Karabastau Formation, Kazakhstan, Oxfordian
• †Zygadenia oculata Soriano & Delclòs, 2006 La Pedrera de Rúbies Formation, Spain, Barremian
• †Zygadenia oxypygus (Ponomarenko, 1969) Koldzat Formation, Kazakhstan, Carnian
• †Zygadenia patulus Ponomarenko, 1985 Tyumen Formation, Russian, Callovian
• †Zygadenia picturatus (Ponomarenko, 1964) Karabastau Formation
• †Zygadenia pingi (Ponomarenko and Ren 2010) Daohugou, China, Callovian
• †Zygadenia porrecta Tan et al. 2006 Yixian Formation, China, Aptian
• †Zygadenia protensa Tan et al. 2006 Yixian Formation, China, Aptian
• †Zygadenia psilata Tan et al. 2005 Yixian Formation, China, Aptian
• †Zygadenia pulcher (Ponomarenko, 1968) Karabastau Formation, Kazakhstan, Oxfordian
• †Zygadenia reticulatus (Oppenheim, 1888) Solnhofen, Germany, Tithonian
• †Zygadenia rostratus (Ponomarenko, 1969) Madygen Formation, Kyrgyzstan, Carnian
• †Zygadenia rudis Tan et al. 2005 Yixian Formation, China, Aptian
• †Zygadenia semen (Ponomarenko, 2000) Argun Formation, Russia, Aptian
• †Zygadenia shiluoensis Hong 1984 Tongchuan Formation, China, Ladinian
• †Zygadenia sibirica Ponomarenko, 2000 Argun Formation, Russia, Aptian
• †Zygadenia simpsoni Jarzembowski et al. 2015 Weald Clay, United Kingdom, Hauterivian-Barremian
• †Zygadenia siniestri Soriano & Delclòs, 2006 Las Hoyas, Spain, Barremian
• †Zygadenia sinitzae Ponomarenko, 2000 Argun Formation, Russia, Aptian
• †Zygadenia sogutensis (Ponomarenko, 1969) Dzhil Formation, Kyrgyzstan, Hettangian-Sinemurian
• †Zygadenia stabilis Tan et al. 2005 Yixian Formation, China, Aptian
• †Zygadenia tenuis (Ponomarenko, 1969) Madygen Formation, Kyrgyzstan, Carnian
• †Zygadenia tripartitus (Oppenheim, 1888) Solnhofen, Germany, Tithonian
• †Zygadenia tuanwangensis (Hong, 1990) Laiyang Formation, China, Aptian
• †Zygadenia tuberculatus (Giebel, 1856) Purbeck Group, United Kingdom, Berriasian
• †Zygadenia valida Lin 1976 Jehol Group, China, Aptian
• †Zygadenia viridis Soriano & Delclòs, 2006 Las Hoyas, Spain, Barremian
• †Zygadenia vitimensis (Ponomarenko, 1966) Zaza Formation, Russia, Aptian
• †Zygadenia westraliensis Riek 1968 Cattamarra Coal Measures, Australia, Toarcian

References

1. Kirejtshuk, Alexander G. (2020-02-17). "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.