Revisiting the morphology of the Cretaceous ommatid beetle Clessidromma palmeri (Coleoptera: Archostemata: Ommatidae)

Authors

  • Yan-Da Li Chinese Academy of Sciences, Nanjing Institute of Geology and Palaeontology, Center for Excellence in Life and Paleoenvironment, State Key Laboratory of Palaeobiology and Stratigraphy. Nanjīng, Jiangsu, China. http://orcid.org/0000-0002-9439-202X
  • Chen-Yang Cai Chinese Academy of Sciences, Nanjing Institute of Geology and Palaeontology, Center for Excellence in Life and Paleoenvironment, State Key Laboratory of Palaeobiology and Stratigraphy. Nanjīng, Jiangsu, China; University of Bristol, School of Earth Sciences. Bristol, United Kingdom. http://orcid.org/0000-0002-9283-8323

DOI:

https://doi.org/10.11606/1807-0205/2021.61.95

Keywords:

Archostemata, Ommatidae, Clessidromma, Kirejtomma, Burmese amber

Abstract

The morphology of Clessidromma palmeri Jarzembowski et al. from mid-Cretaceous Burmese amber is revised based on a reexamination of the type specimen. Contrary to previous studies, our observation confirms that Clessidromma has open procoxal cavities. The characters such as platform on the ventral side of head, modified metacoxae, and ridges on head and pronotum are suggested to be diagnostic characters for Clessidromma. Clessidromma zengi Kirejtshuk from the same deposit is transferred into a new genus, as Kirejtomma zengi comb. nov.

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References

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Published

2021-10-27

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Original Article

How to Cite

Li, Y.-D., & Cai, C.-Y. (2021). Revisiting the morphology of the Cretaceous ommatid beetle Clessidromma palmeri (Coleoptera: Archostemata: Ommatidae). Papéis Avulsos De Zoologia, 61, e20216195. https://doi.org/10.11606/1807-0205/2021.61.95