期刊
CRETACEOUS RESEARCH
卷 140, 期 -, 页码 -出版社
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/j.cretres.2022.105336
关键词
Fossil; Polyphaga; Elateriformia; Lasiosynidae; Yixian Formation
资金
- National Natural Science Foundation of China [42288201, 32020103006]
This is a study on two new fossil species discovered in northeastern China. These two species belong to the extinct Mesozoic beetle family Lasiosynidae, and provide important information for understanding the evolution of this family.
Two new species, Lasiosyne integera sp. nov. and Lasiosyne parva sp. nov., are described from the Lower Cretaceous, Yixian Formation of Huangbanjigou Village, Liaoning Province, northeastern China. These two new fossil species can be assigned to the extinct Mesozoic beetle family Lasiosynidae, based on their elongate suboval body, filiform antenna, striate elytron with lateral edge emarginated at the middle, abdomen with five ventrites, and slightly narrow and simple 5-segmented tarsus. This Mesozoic family was placed in infraorder Elateriformia with a mixture of several characters among superfamilies of Dascilloidea, Elateroidea, Buprestoidea, and Byrrhoidea. These two new species enhance the diversity of the genus Lasiosyne during the mid-Mesozoic. In addition, they also provide additional information for future phylogenetic studies of Lasiosynidae evolution.(c) 2022 Elsevier Ltd. All rights reserved.
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