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

Authors

  • Yan-Da Li State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, and Center for Excellence in Life and Palaeoenvironment, Chinese Academy of Sciences, Nanjing, China; School of Life Sciences, Peking University, Beijing, China. Author http://orcid.org/0000-0002-9439-202X
  • Shûhei Yamamoto Hokkaido University Museum, Sapporo, Japan. Author http://orcid.org/0000-0002-4162-8457
  • Di-Ying Huang State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, and Center for Excellence in Life and Palaeoenvironment, Chinese Academy of Sciences, Nanjing, China. Author http://orcid.org/0000-0002-5637-4867
  • Chen-Yang Cai State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, and Center for Excellence in Life and Palaeoenvironment, Chinese Academy of Sciences, Nanjing, China; School of Earth Sciences, University of Bristol, Bristol, United Kingdom. Author http://orcid.org/0000-0002-9283-8323

DOI:

https://doi.org/10.11606/1807-0205/2020.60.63

Keywords:

Archostemata, Ommatidae, Miniomma, Miniaturization, Burmese amber

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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Published

2020-11-17

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Original Article

How to Cite

Li, Y.-D., Yamamoto, S., Huang, D.-Y., & Cai, C.-Y. (2020). A miniaturized ommatid beetle in mid-Cretaceous Burmese amber (Coleoptera: Archostemata: Ommatidae). Papéis Avulsos De Zoologia, 60, e20206063. https://doi.org/10.11606/1807-0205/2020.60.63