Lagonomegopidae

Lagonomegopidae Temporal range: Albian–Campanian PreꞒ Ꞓ O S D C P T J K Pg N
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Subphylum:	Chelicerata
Class:	Arachnida
Order:	Araneae
Infraorder:	Araneomorphae
Superfamily:	Palpimanoidea
Family:	†Lagonomegopidae Eskov and Wunderlich 1995
Genera
See text

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.^[1] 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.^[1]

Diagnosis[]

Per Guo and Selden, 2019^[1]

Chelicera with several peg teeth on promargin; true teeth present or absent on retromargin. Carapace with a pair of large posterior median eyes situated on anterolateral corner, other eyes tiny. Endites subtriangular, directed across the labium, almost meeting at the midline. Trichobothria present on leg tibia and metatarsus. Three tarsal claws, unpaired claw hook-like. Six spinnerets. Female palpal tarsi lacking a claw.

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.^[2]

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.^[3]

Genera[]

• † Wunderlich 2017^[4]
  • †Albiburmops annulipes Wunderlich 2017 Burmese amber, Myanmar, Cenomanian
• † Wunderlich 2012^[5]
  • †Archaelagonops alavensis Penney 2006^[6] , Albian
  • †Archaelagonops propinquus Wunderlich 2015^[7] Burmese amber, Myanmar, Cenomanian
  • †Archaelagonops salticoides Wunderlich 2012^[5] Burmese amber, Myanmar, Cenomanian
  • †Archaelagonops scorsum Wunderlich 2015^[7] Burmese amber, Myanmar, Cenomanian
• † Wunderlich 2015^[7]
  • †Cymbiolagonops cymbiocalcar Wunderlich 2015^[7] Burmese amber, Myanmar, Cenomanian
• † Penney 2004^[8]
  • †Grandoculus chemahawinensis Penney 2004^[8] , Campanian
• † Guo, Selden and Ren, 2021^[2]
  • †Hiatomegops spinalis Guo, Selden and Ren, 2021 Burmese amber, Myanmar, Cenomanian
• † Park et al. 2019^[9]
  • †Jinjumegops dalingwateri Park et al. 2019^[9] Jinju Formation, South Korea, Albian
• † Park et al. 2019^[9]
  • †Koreamegops samsiki Park et al. 2019^[9] Jinju Formation, South Korea, Albian
• † Wunderlich 2012^[5]
  • †Lagonoburmops plumosus Wunderlich 2012^[5] Burmese amber, Myanmar, Cenomanian
• † Eskov and Wunderlich 1995^[10]
  • †Lagonomegops americanus Penney 2005^[11] New Jersey amber, Turonian
  • †Lagonomegops cor Pérez-de la Fuente et al. 2013^[12] Spanish amber, Albian
  • †Lagonomegops sukatchevae Eskov and Wunderlich 1995^[10] , Santonian
  • †Lagonomegops tuber Wunderlich 2015^[7] Burmese amber, Myanmar, Cenomanian
• † Wunderlich 2015^[7]
  • †Lineaburmops beigeli Wunderlich 2015 Burmese amber, Myanmar, Cenomanian
  • †Lineaburmops hirsutipes Wunderlich 2015 Burmese amber, Myanmar, Cenomanian
  • †Lineaburmops maculatus Wunderlich 2015 Burmese amber, Myanmar, Cenomanian
• † Wunderlich 2012^[5]
  • †Myanlagonops gracilipes Wunderlich 2012 Burmese amber, Myanmar, Cenomanian
• † Guo and Selden 2019^[1]
  • †Odontomegops titan Guo and Selden 2019 Burmese amber, Myanmar, Cenomanian
• † Wunderlich 2015^[7]
  • †Parviburmops bigibber Wunderlich 2017^[4] Burmese amber, Myanmar, Cenomanian
  • †Parviburmops brevipalpus Wunderlich 2015 Burmese amber, Myanmar, Cenomanian
• † Wunderlich 2015^[7]
  • †Paxillomegops brevipes Wunderlich 2015 Burmese amber, Myanmar, Cenomanian
  • †Paxillomegops cornutus Wunderlich 2017^[4] Burmese amber, Myanmar, Cenomanian
  • †Paxillomegops longipes Wunderlich 2015 Burmese amber, Myanmar, Cenomanian
• † Wunderlich 2015^[7]
  • †Picturmegops signatus Wunderlich 2015 Burmese amber, Myanmar, Cenomanian
• † Wunderlich 2017^[4]
  • †Planimegops parvus Wunderlich 2017 Burmese amber, Myanmar, Cenomanian
• † Guo, Selden and Ren, 2021^[2]
  • †Scopomegops fax Guo, Selden and Ren, 2021 Burmese amber, Myanmar, Cenomanian
• † Pérez-de la Fuente et al. 2013^[12]
  • †Soplaogonomegops unzuei Pérez-de la Fuente et al. 2013 Spanish amber, Albian
• † Pérez-de la Fuente et al. 2013^[12]
  • †Spinomegops aragonensis Pérez-de la Fuente et al. 2013 Spanish amber, Albian
  • †Spinomegops arcanus Pérez-de la Fuente et al. 2013 Spanish amber, Albian
• † Kaddumi 2007^[13]
  • †Zarqagonomegops wunderlichi Kaddumi 2007 , Albian

References[]