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Original Articles

New finding of Mesozoic ephippia of the Anomopoda (Crustacea: Cladocera)

Pages 523-528 | Received 06 Nov 2007, Accepted 19 Feb 2008, Published online: 03 Dec 2010
 

Abstract

Fossil Mesozoic anomopods (Crustacea: Cladocera) have only been found twice previously, although this group apparently differentiated in the Palaeozoic. This paper describes the finding of anomopod ephippia of three different types in the locality Khutel‐Khara, Mongolia (Lower Cretaceous, 129±9 Mya). This discovery demonstrates once more that the idea of rarity of cladocerans in Mesozoic fossils was motivated by insufficient attention of carcinologists to such fossils.

Acknowledgements

I am grateful to Prof N.N. Smirnov, Dr A.G. Ponomarenko and Dr D.E. Shcherbakov for material and consultations, two anonymous reviewers for valuable criticism and Mr V.N. Antropov for technical assistance with SEM. The study is supported by the Russian Foundation for Basic Research (grant 06‐04‐48624) and a scholarship from the Russian Science Support Foundation.

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