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First fossil jacobsoniid beetle (Coleoptera): Derolathrus groehni n. sp. from Eocene Baltic amber

Published online by Cambridge University Press:  28 March 2016

Chenyang Cai ,
Richard A. B. Leschen ,
Ye Liu  and
Diying Huang
Chenyang Cai
Affiliation:
Key Laboratory of Economic Stratigraphy and Palaeogeography, Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, Nanjing, Jiangsu 210008, China 〈caichenyang1988@163.com〉
Richard A. B. Leschen
Affiliation:
Landcare Research, New Zealand Arthropod Collection, Private Bag 92170, Auckland, New Zealand 〈leschenr@landcareresearch.co.nz〉
Ye Liu
Affiliation:
Key Laboratory of Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China 〈liuye198282@126.com〉
Diying Huang
Affiliation:
State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, Nanjing, Jiangsu 210008, China 〈dyhuang@nigpas.ac.cn〉
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Abstract

Jacobsoniidae, comprising a small group of small-to-minute polyphagan beetles, is a family presently placed within Derodontiformia. No fossil jacobsoniid has been described to date. Here, we describe the first fossil jacobsoniid, Derolathrus groehni n. sp., based on two well-preserved individuals in middle Eocene Baltic amber. Micro–computed tomography (micro-CT) was used to reveal many diagnostic characters of the Recent genus Derolathrus Sharp. Derolathrus groehni is compared with modern Derolathrus species and is noteworthy for the well-developed eyes and elongate prothorax.

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Articles
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Journal of Paleontology , Volume 89 , Issue 5 , September 2015 , pp. 762 - 767
Copyright
Copyright © 2016, The Paleontological Society 

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