Project 2524: M. Hyžný, A. Kroh, A. Ziegler, A. Anker, M. Košťák, J. Schlögl, A. Culka, J. W. M. Jagt, R. H. B. Fraaije, M. Harzhauser, B. W. M. van Bakel, A. Ruman. 2017. Comprehensive analysis and reinterpretation of Cenozoic mesofossils reveals ancient origin of the snapping claw of alpheid shrimps. Scientific Reports. 7:4076.
Specimen: † Alpheidae (NHMW:2016/0152/0010)
View: Not applicable

Abstract

Alpheid snapping shrimps (Decapoda: Caridea: Alpheidae) constitute one of the model groups for inferences aimed at understanding the evolution of complex structural, behavioural, and ecological traits among benthic marine invertebrates. Despite being a super-diverse taxon with a broad geographical distribution, the alpheid fossil record is still poorly known. However, data presented herein show that the strongly calcified fingertips of alpheid snapping claws are not uncommon in the fossil record and should be considered a novel type of mesofossil. The Cenozoic remains analysed here represent a compelling structural match with extant species of Alpheus. Based on the presence of several distinct snapping claw-fingertip morphotypes, the major radiation of Alpheus lineages is estimated to have occurred as early as 18 mya. In addition, the oldest fossil record of alpheids in general can now be confirmed for the Late Oligocene (27–28 mya), thus providing a novel minimum age for the entire group as well as the first reliable calibration point for deep phylogenetic inferences.


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Article DOI: 10.1038/s41598-017-02603-5

Project DOI: 10.7934/P2524, http://dx.doi.org/10.7934/P2524
This project contains
  • 188 Media
  • 11 Documents
  • 7 Taxa
  • 85 Specimens
Total size of project's media files: 968.67M

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MorphoBank Project 2524

    Authors' Institutions

    • Charles University in Prague

    • Natural History Museum, Vienna (Naturhistorisches Museum, Wien)

    • Museu Paraense Emílio Goeldi

    • Rheinische Friedrich-Wilhelms-Universität Bonn (University of Bonn)

    • Naturalis Biodiversity Center

    • Natuurhistorisch Museum Maastricht

    • Oertijdmuseum De Groene Poort

    • Universidade Federal de Goiás

    • Comenius University



    Members

    member name taxa specimens media media
    notes
    Alexander Ziegler
    Project Administrator
    7851883
    Arthur Anker
    Full membership
    0000
    Adam Culka
    Full membership
    0000
    René HB Fraaije
    Full membership
    0000
    Mathias Harzhauser
    Full membership
    0000
    Matúš Hyžný
    Full membership
    0000
    John WM Jagt
    Full membership
    0000
    Martin Košťák
    Full membership
    0000
    Andreas Kroh
    Full membership
    0000
    Andrej Ruman
    Full membership
    0000
    Ján Schlögl
    Full membership
    0000
    Barry WM van Bakel
    Full membership
    0000


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    Taxon list3869
    Documents list1077
    Bibliography874
    Specimen list31896
    Views for media list1207




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    Media downloads17M430919 (1 download); M430916 (1 download); M430745 (3 downloads); M430746 (1 download); M430751 (2 downloads); M430845 (2 downloads); M430757 (1 download); M430783 (1 download); M430846 (1 download); M430748 (1 download); M430792 (1 download); M430790 (2 downloads);
    Document downloads3Data (1 download); Data (2 downloads);