The Fossil Record of Elateridae (Coleoptera: Elateroidea): Described Species, Current Problems and Future Prospects.

Robin Kundrata,Alexander S Prosvirov,Johana Hoffmannova,Gabriela Packova

doi:10.3390/insects12040286

Robin Kundrata, Alexander S Prosvirov + Show 2 more

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https://doi.org/10.3390/insects12040286

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Abstract

Simple SummaryBeetle fossils play an important role in our understanding of the origin and evolutionary history of this insect order. Despite the recently increasing rate of fossil research focused on the click-beetles (Coleoptera: Elateridae), the major group in the superfamily Elateroidea, their palaeodiversity has still remained largely understudied. In this study, we summarized current knowledge on the click-beetle fossil record with a main emphasis on the described diversity. We compiled an annotated catalogue of all described fossil species in Elateridae, assessed the reliability of their systematic placement, and discuss the current state of knowledge and prospects of research of the fossil record in the group. This study should serve as a comprehensive basis for all subsequent research dealing with the origin, early evolution and diversity of Elateridae.The Elateridae (click-beetles) are the largest family in Elateroidea; however, their relationships, systematics and classification remain unclear. Our understanding of the origin, evolution, palaeodiversity and palaeobiogeography of Elateridae, as well as reconstruction of a reliable time-calibrated phylogeny for the group, are hampered by the lack of detailed knowledge of their fossil record. In this study, we summarize the current knowledge on all described fossil species in Elateridae, including their type material, geographic origin, age, bibliography and remarks on their systematic placement. Altogether, 261 fossil species classified in 99 genera and nine subfamilies are currently listed in this family. The Mesozoic click-beetle diversity includes 143 species, with most of them described from the Jurassic Karatau, and 118 described species are known from the Cenozoic deposits, mainly from the Eocene North American Florissant Formation and European Baltic amber. Available data on the described past diversity of Elateridae suggest that almost all fossil lineages in this group are in urgent need of revision and numerous Mesozoic species might belong to different families. Our study is intended to serve as a comprehensive basis for all subsequent research focused on the click-beetle fossil record.

Highlights

The click-beetles (Elateridae) are the major family in Elateroidea, comprising more than 10,000 described species worldwide [1]
The Mesozoic click-beetle diversity includes 143 species, with most of them described from the Jurassic Karatau, and 118 described species are known from the Cenozoic deposits, mainly from the Eocene North American Florissant Formation and European Baltic amber
We assessed each fossil species based on its original description and available illustrations to conclude whether its position in Elateridae and its generic attribution can be considered reliable or not

Summary

Introduction

The click-beetles (Elateridae) are the major family in Elateroidea, comprising more than 10,000 described species worldwide [1]. Despite the efforts of numerous studies using morphological or molecular data, the classification and phylogenetic relationships within the family remain far from fully understood [2,3,4,5,6,7,8,9,10,11] Taking this into consideration, further development of click-beetle systematics and understanding their evolution would certainly benefit from integrating modern molecular-based methods and morphology with fossils into a combined phylogenetic approach. Wickham [27,28] described the diversity of Elateridae in the Florissant deposit in Colorado, USA, and he later provided a checklist of all North American fossil beetles, including Elateridae [29]. Later authors continued in dealing with just a single or several species of Elateridae without any revision or a more comprehensive picture, including Ping [40] (a new monotypic genus from the Cretaceous of China), Wickham [41] (a single new species from the Eocene of the USA), Theobald [42] (a single species from the Oligocene of Germany), Piton [43] (two species from the Paleocene of France), Haupt [44] (a single species from the Eocene of Germany), Gardiner [45] (a new monotypic genus), and Becker [46] (one new genus and three new species from Miocene Mexican amber)

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