Frenguelliidae, a new family of dragonflies from the earliest Eocene of Argentina (Insecta: Odonata): phylogenetic relationships within Odonata

Petrulevičius, Julián F.; Nel, André

doi:10.1080/0022293021000007543

Cited by 31 publications

(32 citation statements)

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“…It differs from the Frenguielliidae Petrulevičius and Nel 2003 (Eocene of Argentina) in its basally closed discoidal cell, and nodal structures (Petrulevičius & Nel 2003). It differs from the Sieblosiidae Handlirsch 1906 (sensu Nel et al 2005a) in the absence of oblique vein 'O', and base of IR2 just below subnodus, instead of being in a more basal position.…”

Section: Discussionmentioning

confidence: 95%

The first Baltic amber dysagrionine damselfly (Odonata: Zygoptera: Thaumatoneuridae: Dysagrioninae)

Nel¹,

Arillo²

2006

Annales de la Société entomologique de France (N.S.)

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Abstract.A new genus and species Electrophenacolestes serafini is described. It is the first Thaumatoneuridae recorded from an amber deposit and the second record of the family in the European Paleogene. A comparison with related genera and families is done.Résumé. Le premier Zygoptera Dysagrioninae de l'ambre balte (Odonata : Zygoptera : Thaumatoneuridae : Dysagrioninae). Le premier Thaumatoneuridae connu de l'ambre balte est décrit sous le nom d'Electrophenacolestes serafini. Il s'agit du second représentant connu de cette famille dans le Paléogène d'Europe. Le fossile est comparé aux familles et genres proches.

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Section: Discussionmentioning

confidence: 95%

The first Baltic amber dysagrionine damselfly (Odonata: Zygoptera: Thaumatoneuridae: Dysagrioninae)

Nel¹,

Arillo²

2006

Annales de la Société entomologique de France (N.S.)

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“…From the Paleozoic and Mesozoic of Brazil, several families are known (Martins-Neto, 2005;Moura et al, 2006), particularly from the Early Permian of the Paraná Basin and the Early Cretaceous of the Araripe Basin. By contrast, in Argentina odonatopteran body-fossil specimens overwhelmingly originate from Cenozoic deposits (Petrulevičius, 2001;Petrulevičius et al, 1999;Petrulevičius and Nel, 2002a, 2002b, 2003a, 2003b, 2004a, 2004b. There are a few records from the Paleozoic of Argentina, including two members of the Geroptera in the Early Pennsylvanian (Riek and Kukalová-Peck, 1984;Wootton et al, 1998;Gutierrez et al, 2000), and multiple occurrences of the Odonata from the Middle and Late Triassic (Carpenter, 1960;Martins-Neto et al, 2003).…”

Section: Discussionmentioning

confidence: 99%

Odonatan endophytic oviposition from the Eocene of Patagonia: The ichnogenusPaleoovoidusand implications for behavioral stasis

et al. 2009

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ABSTRACT-We document evidence of endophytic oviposition on fossil compression/impression leaves from the early Eocene Laguna del Hunco and middle Eocene Río Pichileufú floras of Patagonia, Argentina. Based on distinctive morphologies and damage patterns of elongate, ovoid, lens-, or teardrop-shaped scars in the leaves, we assign this insect damage to the ichnogenus Paleoovoidus, consisting of an existing ichnospecies, P. rectus, and two new ichnospecies, P. arcuatum and P. bifurcatus. In P. rectus, the scars are characteristically arranged in linear rows along the midvein; in P. bifurcatus, scars are distributed in double rows along the midvein and parallel to secondary veins; and in P. arcuatum, scars are deployed in rectilinear and arcuate rows. In some cases, the narrow, angulate end of individual scars bear a darkened region encompassing a circular hole or similar feature indicating ovipositor tissue penetration. A comparison to the structure and surface pattern of modern ovipositional damage on dicotyledonous leaves suggests considerable similarity to certain zygopteran Odonata. Specifically, members of the Lestidae probably produced P. rectus and P. bifurcatus, whereas species of Coenagrionidae were responsible for P. arcuatum. Both Patagonian localities represent an elevated diversity of potential fern, gymnosperm, and especially angiosperm hosts, the targets of all observed oviposition. However, we did not detect targeting of particular plant families. Our results indicate behavioral stasis for the three ovipositional patterns for at least 50 million years. Nevertheless, synonymy of these oviposition patterns with midMesozoic ichnospecies indicates older origins for these distinctive modes of oviposition.

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“…Adjusted for sample size by using rarefaction, the LH flora is more speciose than comparable Eocene assemblages known from other continents (35,36). Relatively rare fossil insects are also preserved, including several phytophagous taxa (43).…”

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Richness of plant–insect associations in Eocene Patagonia: A legacy for South American biodiversity

Wilf

Labandeira

Johnson

et al. 2005

Proc. Natl. Acad. Sci. U.S.A.

105

100

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South America has some of the most diverse floras and insect faunas that are known, but its Cenozoic fossil record of insects and insect herbivory is sparse. We quantified insect feeding on 3,599 leaves from the speciose Laguna del Hunco flora (Chubut, Argentina), which dates to the early Eocene climatic optimum (52 million years ago) and compared the results with three well preserved, rich, and identically analyzed early-and middle-Eocene floras from the following sites in North America: Republic, WA; Green River, UT; and Sourdough, WY. We found significantly more damage diversity at Laguna del Hunco than in the North American floras, whether measured on bulk collections or on individual plant species, for both damage morphotypes and feeding groups. An ancient history of rich, specialized plant-insect associations on diverse plant lineages in warm climates may be a major factor contributing to the current biodiversity of South America.paleobotany ͉ Argentina ͉ herbivory ͉ Laguna del Hunco ͉ paleoecology S outh America is well known for its highly diverse** floras (1-3) and associated insect faunas (4-7). Observations in South America and elsewhere show strong positive linkage between plant and insect-herbivore diversity (8)(9)(10)(11)(12)(13)(14). Proposed mechanisms include dependency of insect diversity on plant diversity (8, 9, 13), coevolution of plants and insects (15-21), herbivore selection against host density (22-25), and herbivore intensification of abiotic factors that select for habitat specialization (26,27). Paleontological data can be used to test whether plant and herbivore diversity were correlated in the past (28-30), although data bearing on the primary mechanisms are not typically available from fossils. However, throughout South America, insect body fossils have a limited Cenozoic record (31), and insect damage on fossil plants has rarely been reported (32,33). Here, we seek to determine whether a diverse fossil flora from South America has an elevated level of plant-insect associations. We quantify insect-feeding damage on one of the most speciose known assemblages of fossil plants, from earlyEocene Patagonia and, for comparison, on three well preserved, diverse early-and middle-Eocene floras from comparable absolute latitudes of North America. Study Areas, Specimens, and MethodsThe Patagonian flora comes from tuffaceous lake beds exposed at Laguna del Hunco (LH; S42.5°, W70°; paleolatitude, Ϸ47°S) in Chubut, Argentina (34-36). These sediments were deposited 52 million years ago (35,36), during the early Eocene global climatic optimum (37). At this time, thermophilic organisms reached middle and high latitudes of both hemispheres (38-42), and the LH flora contains a large proportion of tropical as well as temperate lineages (34)(35)(36)39). Our unbiased macrofloral sample, in which all material was collected or tallied, totals 6,521 specimens from 25 quarries, of which 4,303 specimens (66%) are identifiable to 186 species of plant organs. These include 152 leaf species, of which 132 are ma...

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Frenguelliidae, a new family of dragonflies from the earliest Eocene of Argentina (Insecta: Odonata): phylogenetic relationships within Odonata

Cited by 31 publications

References 0 publications

The first Baltic amber dysagrionine damselfly (Odonata: Zygoptera: Thaumatoneuridae: Dysagrioninae)

The first Baltic amber dysagrionine damselfly (Odonata: Zygoptera: Thaumatoneuridae: Dysagrioninae)

Odonatan endophytic oviposition from the Eocene of Patagonia: The ichnogenusPaleoovoidusand implications for behavioral stasis

Richness of plant–insect associations in Eocene Patagonia: A legacy for South American biodiversity

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