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      A miniaturized ommatid beetle in mid-Cretaceous Burmese amber (Coleoptera: Archostemata: Ommatidae)

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          Abstract

          Abstract Recent findings of ommatids from mid-Cretaceous Burmese amber have greatly increased our knowledge on the Mesozoic diversity of Ommatidae. Here, we report the first distinctly miniaturized ommatid species, Miniomma chenkuni gen. et sp. nov., entombed in mid-Cretaceous amber from northern Myanmar. This new fossil species is characterized by its small body size (less than 2 mm long) and subglobular metacoxae. Our discovery of miniaturization in extinct Ommatidae suggests a high ecological diversity of this family in the Mesozoic.

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          The evolution and genomic basis of beetle diversity

          Duane D. McKenna, Seunggwan Shin, Dirk Ahrens … (2019)
          Significance We inferred the phylogeny and evolution of beetles using genomic data of an unprecedented scale. Moreover, we documented the diversification of plant-feeding (herbivorous) beetles, which account for nearly half of all beetle species and a similar proportion of herbivorous insects, following convergent horizontal transfers of bacterial and fungal genes enabling the digestion of lignocellulose in plant cell walls. Our findings clarify beetle phylogenetic relationships and reveal new insights into the evolution of specialized herbivory and why there are so many species of beetles. Furthermore, they underscore the intimacy and complexity of the evolutionary relationships between insects, plants, and microorganisms and show how analyses of large-scale genomic data are revealing the evolution and genomic basis of insect biodiversity.
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            Miniaturization of Body Size: Organismal Consequences and Evolutionary Significance

            James Hanken, David Wake (1993)
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              The beetle tree of life reveals that Coleoptera survived end-Permian mass extinction to diversify during the Cretaceous terrestrial revolution

              DUANE MCKENNA, Alexander Wild, Kojun Kanda … (2015)
              Article 0 comments Cited 89 times – based on 0 reviews     Review now
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                Author and article information

                Journal
                Journal ID (publisher-id): paz
                Title: Papéis Avulsos de Zoologia
                Abbreviated Title: Pap. Avulsos Zool.
                Publisher: Museu de Zoologia da Universidade de São Paulo (São Paulo, SP, Brazil )
                ISSN (Print): 0031-1049
                ISSN (Electronic): 1807-0205
                Publication date (Print and electronic): 2020
                Volume: 60
                Electronic Location Identifier: e20206063
                Affiliations
                [2] Beijing Beijing orgnamePeking University orgdiv1School of Life Sciences China
                [3] Sapporo orgnameHokkaido University Museum Japan
                [4] Bristol orgnameUniversity of Bristol orgdiv1School of Earth Sciences United Kingdom
                [1] Nanjing orgnameChinese Academy of Sciences orgdiv1Nanjing Institute of Geology and Palaeontology, and Center for Excellence in Life and Palaeoenvironment orgdiv2State Key Laboratory of Palaeobiology and Stratigraphy China
                Article
                Publisher ID: S0031-10492020000100261 Publisher ID: S0031-1049(20)06000000261
                DOI: 10.11606/1807-0205/2020.60.63
                SO-VID: 12267461-11fb-4cec-a288-c68b6f984fbe
                License:

                This work is licensed under a Creative Commons Attribution 4.0 International License.

                History
                Date accepted : 20 October 2020
                Date received : 08 September 2020
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 27, Pages: 0
                Product

                SciELO Brazil

                Self URI: Full text available only in PDF format (EN)
                Categories
                Subject: Articles

                Keywords: Miniomma,Miniaturization,Archostemata,Burmese amber,Ommatidae
                Data availability:
                Keywords: Miniomma, Miniaturization, Archostemata, Burmese amber, Ommatidae

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