A new genus and species of Tettigarctidae from the Mesozoic of northeastern China (Insecta, Hemiptera, Cicadoidea)

Zheng, Yan; Wang, Xiaoli

doi:10.3897/zookeys.632.10076

Cited by 8 publications

(4 citation statements)

References 28 publications

(56 reference statements)

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“…gobiensis (Fig. 7.2) is widely shared by the basal groups of Cicadoidea and Cercopoidea (Tettigarctidae and Procercopidae, respectively) (Wang et al, 2012; Chen et al, 2015; Chen and Wang, 2016).…”

Section: Discussionmentioning

confidence: 99%

“…The Daohugou beds, yielding abundant and diverse fossil plants and animals, are now considered among the most important insect Lagerstätten (Rasnitsyn et al, 2006). The age of the Daohugou beds is somewhat controversial (e.g., Zhang, 2002; Shen et al, 2003; Rasnitsyn and Zhang, 2004; Wang et al, 2015; Chen and Wang, 2016; Xu et al, 2016). Recent radiometric dating results (Liu et al, 2006, 2012; Wang et al, 2013) and paleontological studies (Wang et al, 2018, and references therein), however, suggest that the Daohugou beds are of latest Middle Jurassic–earliest Late Jurassic age (Callovian–Oxfordian).…”

Section: Geological Settingmentioning

confidence: 99%

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Geometric morphometric analysis for the systematic elucidation of new Hylicellidae from the Jurassic of China (Hemiptera: Cicadomorpha)

et al. 2022

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The extinct family Hylicellidae, as the ancestral group of modern cicadomorphans, had a wide distribution and a very high species-level biodiversity from the Triassic to Early Cretaceous. We herein report 11 new hylicellid specimens from the Jurassic Daohugou beds of Inner Mongolia, NE China, and execute geometric morphometric analysis (GMA) to elucidate their systematic position. Our GMA and subsequent morphometric statistics indicate that 10 of our new specimens can be compared to the holotype of Cycloscytina gobiensis, and one is new to science. Cycloscytina incompleta new species is erected based on this specimen, with the following discriminatory tegminal traits: C3 almost as long as and slightly narrower than C2, and the forking position of stem M distinctly migrates towards wing apex and much apicad of the stem CuA bifurcating. Additionally, Cycloscytina plachutai is herein transferred to the procercopid genus Procercopina, resulting in P. plachutai new combination. To date, just a few body structures of Hylicellidae have been revealed, and the new whole-bodied hylicellids reported herein provide some novel insights on the evolution of basal Clypeata. This study also emphasizes the use of morphometric analysis in the systematics of wing-bearing insects such as hylicellids. UUID: http://zoobank.org/84a67eba-9b7c-4e27-a436-764802c4cdfb.

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Section: Discussionmentioning

confidence: 99%

Section: Geological Settingmentioning

confidence: 99%

Geometric morphometric analysis for the systematic elucidation of new Hylicellidae from the Jurassic of China (Hemiptera: Cicadomorpha)

et al. 2022

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“…3d) lead us to believe that it is an early instar 44 , rendering identification to one of the families impossible. In terms of phylogeographical context, the presence of the two families on both sides of the Wallace line [45][46][47][48][49][50] (a faunal boundary separating two different ecozones in southeast Asia) prevents any clear assertion of this specimen belonging to the Cicadidae rather than the Tettigarctidae.…”

Section: Discussionmentioning

confidence: 99%

Arthropod entombment in weathering-formed opal: new horizons for recording life in rocks

Chauviré

Houadria

Donini

et al. 2020

Sci Rep

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Animal fossils preserved in various geological materials, such as limestone, claystone, or amber, provide detailed information on extinct species that is indispensable for retracing the evolution of terrestrial life. Here, we present the first record of an animal fossil preserved in opal formed by weathering with such high-resolution details that even individual cuticle hairs are observed. the fossil consists of the exoskeleton of a nymphal insect belonging to the order Hemiptera and either the family Tettigarctidae or the Cicadidae. This identification is based on anatomical details such as the tibial and femoral morphology of the forelegs. the exoskeleton of the insect was primarily zeolitized during the alteration of the host rocks and later sealed in opal deposited by silica-rich fluids derived from the continental weathering of the volcanic host rocks. organic matter is preserved in the form of amorphous carbon. This finding makes opal formed by rocks weathering a new, complementary source of animal fossils, offering new prospects for the search for ancient life in the early history of Earth and possibly other terrestrial planets such as Mars, where weathering-formed opal occurs. Most invertebrate fossil records where anatomical details are well preserved are from amber or lacustrine or fluvial sedimentary rocks 1. These fossils have provided evolutionary evidence of ancestral traits and extinct species, retracing the evolution of life. Here, we describe an insect fossil in opal-a variety of silica-in which the degree of preservation is comparable (Fig. 1) 2. Silica minerals exist in various species ranging in structure from amorphous to crystalline. Opal is the main species of amorphous silica that precipitates from saturated or near-saturated silica-rich aqueous fluids produced by the alteration of the earth's crust. One of the main sources of silica for opal formation (and hence the eventual silicification of fossils) are volcanic rocks, especially volcanic ashes due to their inherent porosity and glass abundance 3-8. Among opals, the most sought-after type is precious opal, which differs from common opal only by the presence of colored patches (called play-of-color) that appear to move as the stone is viewed from different angles, an optical phenomenon attributed to the diffraction of visible light by a regular arrangement of silica spheres 9,10. Both precious and common opal form mainly in two geological settings: (1) hydrothermal alteration occurring when hot water circulates underground and precipitates opal when the temperature drops, e.g., as siliceous sinter (a hard incrustation around hot springs); and (2) continental weathering that occurs when meteoric waters percolate, hydrolyzing silicate while transforming the rock into a soil. In both contexts, the dissolved silica exists as silicic acid (H 4 SiO 2) in aqueous solution. Silicic acid will polymerize into silica during a variation in physical or chemical conditions, primarily pH and temperature 11. The degradation of organic matter may favor t...

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“…The Daohugou area is one of the most important insect fields containing abundant, diverse, and excellently preserved fossils (Rasnitsyn & Zhang 2004Zhang 2012;Makarkin et al 2013;Liu et al 2014;Wang et al 2016;Zheng et al 2016;Zheng & Chen 2017). This holds true for the sawfly family Xyelidae, accounting for almost 15% of Hymenoptera in the Daohugou collection kept at the Nanjing Institute of Geology and Palaeontology, which early in the 21 st century displayed at least two subfamilies and three tribes of Xyelidae (Rasnitsyn & Zhang 2004).…”

Section: Introductionmentioning

confidence: 99%

New fossil records of Xyelidae (Hymenoptera) from the Middle Jurassic of Inner Mongolia, China

Zheng

Chen

et al. 2021

EJT

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A new genus and two new species of Xyelidae Newman, 1834 (Hymenoptera Linnaeus, 1758), Platyxyela tenuis sp. nov. and Scleroxyela daohugouensis gen. et sp. nov. are described and illustrated from the Middle Jurassic Daohugou Beds of Ningcheng, Inner Mongolia, China. Platyxyela tenuis sp. nov. (Xyelinae Newman, 1834, Liadoxyelini Rasnitsyn, 1966) can be distinguished from its congeners by short forewing length and ovipositor sheath strongly narrowed toward acute apex. Scleroxyela daohugouensis gen. et sp. nov. is placed within Macroxyelinae Ashmead, 1898, Xyeleciini Benson, 1945 based on pterositigma completely sclerotised and costal space sclerotised before ptrostigma, 1-Rs half as long as 1-M, and 1m-cu short. It is the first recorded species of Xyeleciini in Daohugou Beds. Furthermore, an updated key of identification of subfamilies and tribes of Xyelidae is provided. Our findings of new morphological data provide insights into the early evolution of Hymenoptera, as well as effectively enrich our understanding of the diversity of Xyelidae in the Mesozoic.

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A new genus and species of Tettigarctidae from the Mesozoic of northeastern China (Insecta, Hemiptera, Cicadoidea)

Cited by 8 publications

References 28 publications

Geometric morphometric analysis for the systematic elucidation of new Hylicellidae from the Jurassic of China (Hemiptera: Cicadomorpha)

Geometric morphometric analysis for the systematic elucidation of new Hylicellidae from the Jurassic of China (Hemiptera: Cicadomorpha)

Arthropod entombment in weathering-formed opal: new horizons for recording life in rocks

New fossil records of Xyelidae (Hymenoptera) from the Middle Jurassic of Inner Mongolia, China

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