Lagonomegopidae

Lagonomegopidae is an extinct family of spiders known from the Cretaceous period. Members of the family are distinguished by a large pair of eyes, positioned on the anterolateral flanks of the carapace, with the rest of the eyes being small. They have generally been considered members of Palpimanoidea, but this has recently been questioned. Members of the family are known from the late Early Cretaceous (Albian) to near the end of the Late Cretaceous (Campanian) of Eurasia, North America and the Middle East, which was then attached to Africa as part of Gondwana. They are generally assumed to have been free living hunters as opposed to web builders.

Diagnosis

Per Guo and Selden, 2019

For the meaning of technical words, refer to the Glossary of spider terms.

Relationships

A phylogenetic analysis conducted in 2021 found that Lagonomegopidae formed the sister group to extant Palpimanoidea.

Paleobiology

Langonomegopids preserved with associated egg sacs and spiderlings indicate that females likely laid egg sacs in nests or hollows, and the young may have lived with the mother for some time after hatching.

Genera

* †'' Albiburmops'' Wunderlich 2017J. Wunderlich. 2017. New and rare fossil spiders (Araneae) in mid Cretaceous amber from Myanmar (Burma), including the description of new extinct families of the suborders Mesothelae and Opisthothelae, as well as notes on the taxonomy, the evolution and the biogeography of the Mesothelae. ''Ten Papers on Fossil and Extant Spiders (Araneae). Beiträge zur Araneologie'' 10:72-279
**†''Albiburmops annulipes'' Wunderlich 2017 Burmese amber, Myanmar, Cenomanian
*†'' Archaelagonops'' Wunderlich 2012J. Wunderlich. 2012. On the fossil spider (Araneae) fauna in Cretaeous ambers, with descriptions of new taxa from Myanmar (Burma) and Jordan, and on the relationships of the superfamily Leptonetoidea. ''Beiträge zur Araneologie'' 7:157-232
**†''Archaelagonops alavensis'' Penney 2006 Spanish amber, Albian
**†''Archaelagonops propinquus'' Wunderlich 2015J. Wunderlich. 2015. On the evolution and the classification of spiders, the Mesozoic spider faunas, and descriptions of new Cretaceous taxa mainly in amber from Myanmar (Burma) (Arachnida: Araneae). ''Mesozoic Spiders (Araneae): Ancient Spider Faunas and Spider Evolution, Beiträge zur Araneologie'' 9:21-408 Burmese amber, Myanmar, Cenomanian
**†''Archaelagonops salticoides'' Wunderlich 2012 Burmese amber, Myanmar, Cenomanian
**†''Archaelagonops scorsum'' Wunderlich 2015 Burmese amber, Myanmar, Cenomanian
*†'' Cymbiolagonops'' Wunderlich 2015
**†''Cymbiolagonops cymbiocalcar'' Wunderlich 2015 Burmese amber, Myanmar, Cenomanian
*†'' Grandoculus'' Penney 2004D. Penney. 2004. Cretaceous Canadian amber spider and the palpimanoidean nature of lagonomegopids. ''Acta Palaeontologica Polonica'' 49:579-584
**†''Grandoculus chemahawinensis'' Penney 2004 Canadian amber, Campanian
*†'' Hiatomegops'' Guo, Selden and Ren, 2021
**†''Hiatomegops spinalis'' Guo, Selden and Ren, 2021 Burmese amber, Myanmar, Cenomanian
*†'' Jinjumegops'' Park et al. 2019
**†''Jinjumegops dalingwateri'' Park et al. 2019 Jinju Formation, South Korea, Albian
*†'' Koreamegops'' Park et al. 2019
**†''Koreamegops samsiki'' Park et al. 2019 Jinju Formation, South Korea, Albian
*†'' Lagonoburmops'' Wunderlich 2012
**†''Lagonoburmops plumosus'' Wunderlich 2012 Burmese amber, Myanmar, Cenomanian
*†'' Lagonomegops'' Eskov and Wunderlich 1995K. Y. Eskov and J. Wunderlich. 1995. On the spiders from Taimyr ambers, Siberia, with the description of a new family and with general notes on the spiders from the Cretaceous resins (Arachnida: Araneae). ''Beiträge zur Araneologie'' 4:95-107
**†''Lagonomegops americanus'' Penney 2005 New Jersey amber, Turonian
**†''Lagonomegops cor'' Pérez-de la Fuente et al. 2013 Spanish amber, Albian
**†''Lagonomegops sukatchevae'' Eskov and Wunderlich 1995 Taimyr amber, Santonian
**†''Lagonomegops tuber'' Wunderlich 2015 Burmese amber, Myanmar, Cenomanian
*†'' Lineaburmops'' Wunderlich 2015
**†''Lineaburmops beigeli'' Wunderlich 2015 Burmese amber, Myanmar, Cenomanian
**†''Lineaburmops hirsutipes'' Wunderlich 2015 Burmese amber, Myanmar, Cenomanian
**†''Lineaburmops maculatus'' Wunderlich 2015 Burmese amber, Myanmar, Cenomanian
*†'' Myanlagonops'' Wunderlich 2012
**†''Myanlagonops gracilipes'' Wunderlich 2012 Burmese amber, Myanmar, Cenomanian
*†'' Odontomegops'' Guo and Selden 2019
**†''Odontomegops titan'' Guo and Selden 2019 Burmese amber, Myanmar, Cenomanian
*†'' Parviburmops'' Wunderlich 2015
**†''Parviburmops bigibber'' Wunderlich 2017 Burmese amber, Myanmar, Cenomanian
**†''Parviburmops brevipalpus'' Wunderlich 2015 Burmese amber, Myanmar, Cenomanian
*†'' Paxillomegops'' Wunderlich 2015
**†''Paxillomegops brevipes'' Wunderlich 2015 Burmese amber, Myanmar, Cenomanian
**†''Paxillomegops cornutus'' Wunderlich 2017 Burmese amber, Myanmar, Cenomanian
**†''Paxillomegops longipes'' Wunderlich 2015 Burmese amber, Myanmar, Cenomanian
*†'' Picturmegops'' Wunderlich 2015
**†''Picturmegops signatus'' Wunderlich 2015 Burmese amber, Myanmar, Cenomanian
*†'' Planimegops'' Wunderlich 2017
**†''Planimegops parvus'' Wunderlich 2017 Burmese amber, Myanmar, Cenomanian
*†'' Scopomegops'' Guo, Selden and Ren, 2021
**†''Scopomegops fax'' Guo, Selden and Ren, 2021 Burmese amber, Myanmar, Cenomanian
*†'' Soplaogonomegops'' Pérez-de la Fuente et al. 2013
**†''Soplaogonomegops unzuei'' Pérez-de la Fuente et al. 2013 Spanish amber, Albian
*†'' Spinomegops'' Pérez-de la Fuente et al. 2013
**†''Spinomegops aragonensis'' Pérez-de la Fuente et al. 2013 Spanish amber, Albian
**†''Spinomegops arcanus'' Pérez-de la Fuente et al. 2013 Spanish amber, Albian
*†'' Zarqagonomegops'' Kaddumi 2007H. F. Kaddumi. 2007. ''Amber of Jordan. The Oldest Prehistoric Insects in Fossilized Resin'' 1-298
**†''Zarqagonomegops wunderlichi'' Kaddumi 2007 Jordanian amber, Albian

References

{{Taxonbar, from=Q3216193

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Prehistoric arthropod families