Minute clubbed beetles with cephalic horns in mid-Cretaceous amber from northern Myanmar (Coleoptera: Monotomidae)

doi:10.11865/zs.2022206

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Abstract A new fossil species of Monotomidae, Cretakarenni shaoi Li & Cai, sp. nov., is reported from the mid-Cretaceous Burmese amber. The new species is attributed to the extinct genus Cretakarenni Peris & Delclòs, 2015 primarily based on the paired setose projections on head, apparently 1-segmented antennal club, and transverse procoxal cavities with exposed trochantins. It differs from the previously reported C. birmanicus Peris & Delclòs from the same deposit in the more narrowly separated projections (cephalic horns) on vertex and the absence of elytral absutural lines. Our discovery of a new monotomid species from the mid-Cretaceous amber highlights the palaeodiversity and morphological disparity of the family in the late Mesozoic.

Fund:Financial support was provided by the Second Tibetan Plateau Scientific Expedition and Research project (2019QZKK0706), the Strategic Priority Research Program of the Chinese Academy of Sciences (XDB26000000 and XDB18000000), and the National Natural Science Foundation of China (41688103).

Corresponding Authors: Chenyang Cai E-mail: cycai@nigpas.ac.cn

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	Yan-Da Li
	Diying Huang
	Chenyang Cai

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Yan-Da Li,Diying Huang,Chenyang Cai. Minute clubbed beetles with cephalic horns in mid-Cretaceous amber from northern Myanmar (Coleoptera: Monotomidae)[J]. Zoological Systematics, 2022, 47(2): 155-164.

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https://www.zootax.com.cn/EN/10.11865/zs.2022206 OR https://www.zootax.com.cn/EN/Y2022/V47/I2/155

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