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A Panorpoid (Insecta: Mecoptera) from the Lower Eocene of Patagonia, Argentina

  • Julián F. Petrulevičius (a1)

The order Mecoptera is represented on all continents, albeit with an uneven distribution. Mecoptera includes about 34 families (Labandeira, 1994, p. 34), only four of them, until now, represented in South America: Permochoristidae Tillyard, 1917 (†) (Pinto, 1972); Bittacidae Handlirsch, 1906 [and stem-group “Neorthophlebinae” (†)] (Petrulevičius, 2001a, 2003, 2007); Nannochoristidae Tillyard, 1917; and Eomeropidae Cockerell, 1909. The two latter families have a present relict distribution in southern South America but without fossil record, obviously an artifact due to few studies of fossil insects in the subcontinent. The diversity of recent Bittacidae is high in South America with respect to other continents. Thirty-five percent of recent genera of Bittacidae come from South America, and 80% of these genera are endemic (extracted from Penny, 1997). Bittacidae is well represented in the fossil record, with species from the Jurassic of Patagonia (Petrulevičius, 2007), Lower Cretaceous of Brazil (Petrulevičius and Martins-Neto, 2001), to the late Paleocene of Argentina (Petrulevičius, 1998, 1999, 2001b, 2003). This contribution reports a specimen belonging to the Panorpoidea, a group with no recent species in South America and very few species in the entire Southern Hemisphere.

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This list contains references from the content that can be linked to their source. For a full set of references and notes please see the PDF or HTML where available.

J. Kukalová-Peck and J. Lawrence 2004. Relationships among coleopteran suborders and mayor endoneopteran lineages: Evidences from hind wing characters. European Journal of Entomology, 101:95144.

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J. F. Petrulevičius and A. Nel 2004. A new damselfly family from the late Paleocene of Argentina (Insecta: Odonata: Zygoptera). Palaeontology, 47(1):109116.

J. F. Petrulevičius and A. Nel 2005. Austroperilestidae, a new family of damselflies from the earliest Eocene of Argentina (Insecta: Odonata). Phylogenetic relationships within Odonata. Journal of Paleontology, 79(4):658662.

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P. Wilf , C. C. Labandeira , K. R. Johnson , and R. Cuneo 2005. Richness of plant-insect associations in Eocene Patagonia: A legacy for South American biodiversity. Proceedings of the National Academy of Sciences, 102:89448948.

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Journal of Paleontology
  • ISSN: 0022-3360
  • EISSN: 1937-2337
  • URL: /core/journals/journal-of-paleontology
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