Project 2482: J. Luque, J. H. Christy, A. J. Hendy, M. S. Rosenberg, R. W. Portell, K. A. Kerr, A. R. Palmer. 2018. Quaternary intertidal and supratidal crabs (Decapoda, Brachyura) from tropical America and the systematic affinities of fossil fiddler crabs. Journal of Systematic Palaeontology. 16 (12):1037-1055.
Specimen: † Uca ornata (unvouchered)
View: frontal

Abstract

Concentrations of fully articulated crabs are rare in the fossil record, especially for terrestrial and semi-terrestrial taxa, which tend to be represented by scarce, fragmentary and poorly preserved fossils due to preservational biases. A newly discovered fossiliferous locality at Bahia Bique, west of Panama City, Panama, yielded a collection of supratidal, intertidal and shallow subtidal invertebrates and vertebrates of mid-Holocene age. Notable discoveries include the first fossils of the sally lightfoot crab Grapsus, the first for the land crab Cardisoma in the Eastern Pacific and, remarkably, the most complete and abundant collection of fossil fiddler crabs, Uca, yet discovered. The abundance and exceptional preservation of fossil male, female, juvenile and adult individuals of Uca aff. ornata in eroded burrow infills suggest that rapid entombment and early diagenesis were crucial for their preservation. The habitat preference of extant U. ornata for soft muds of open intertidal mudflats indicates that part of Bahía Bique must have been a large estuarine mudflat with close proximity to freshwater influx, in contrast to the present-day gravel field where the fossils are found as ex situ boulders, cobbles and gravel-sized clasts eroded from rocks of the poorly known Pacific Muck. We examine the systematic relationships of fossil fiddler crabs from Bahía Bique via synthetic and cladistic approaches, and conclude that they were from an extinct population of the extant Uca ornata. The fidelity of living–death assemblages between the Bique faunule and extant faunas of the tropical Eastern Pacific confirm the Quaternary age of the assemblage, and stimulate a detailed discussion of the preservation and palaeoecology of terrestrial and semi-terrestrial crabs in tropical assemblages.


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Article DOI: 10.1080/14772019.2017.1362599

Project DOI: 10.7934/P2482, http://dx.doi.org/10.7934/P2482
This project containsMatrices
  • 1 Media
  • 2 Matrices
  • 2 Documents
  • 15 Taxa
  • 1 Specimen
  • 156 Characters
Total size of project's media files: 514.75k

Download Project SDD File
Total scored cells: 1978
Total media associated with cells: 0
Total labels associated with cell media: 0
Characters
Total characters: 156
Total characters with associated media: 0
Total characters with media with labels: 0
Total character states: 339
Total character states with associated media: 0
Total character states with media with labels:0
Total unordered/ordered characters:156/0
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MorphoBank Project 2482

    Authors' Institutions

    • Arizona State University

    • University of Alberta

    • University of Florida

    • Yale University

    • Natural History Museum of Los Angeles County

    • Smithsonian Tropical Research Institute



    Members

    member name taxa specimens media media
    notes
    chars character
    media
    labels
    cell scorings
    (scored, NPA, "-")
    cell
    medialabels
    rules
    Javier Luque
    Project Administrator
    Last logged in 04/24/17
    21100000
    (0, 0, 0)
    000


    Taxonomic Overview for Matrix 'M26440' (15 Taxa)

    taxon unscored
    cells
    scored
    cells
    no cell
    support
    NPA
    cells
    "-" cellscell images labels on
    cell images
    member
    access
    [1] Uca beebei
    Last Modified in 02/12/20
    0747404001
    [2] Uca stenodactylus
    Last Modified in 02/12/20
    0747404001
    [3] Uca tangeri
    Last Modified in 02/12/20
    1777700001
    [4] Uca intermedia
    Last Modified in 02/12/20
    1777700001
    [5] Uca heteropleura
    Last Modified in 02/12/20
    1777700001
    [6] Uca stylifera
    Last Modified in 02/12/20
    1777700001
    [7] Uca major
    Last Modified in 02/12/20
    1777700001
    [8] Uca monilifera
    Last Modified in 02/12/20
    780000001
    [9] Uca princeps
    Last Modified in 02/12/20
    0787800001
    [10] Uca maracoani
    Last Modified in 02/12/20
    1777700001
    [11] Uca insignis
    Last Modified in 02/12/20
    1777700001
    [12] † Uca ornata
    Last Modified in 02/12/20
    0787800001
    [13] † Uca marinae
    Last Modified in 02/12/20
    21575700001
    [14] † Uca antiqua
    Last Modified in 02/12/20
    48303000001
    [15] † Uca ornata bique
    Last Modified in 02/12/20
    27515100001


    Taxonomic Overview for Matrix 'M26452' (15 Taxa)

    taxon unscored
    cells
    scored
    cells
    no cell
    support
    NPA
    cells
    "-" cellscell images labels on
    cell images
    member
    access
    [1] Uca beebei
    Last Modified in 02/12/20
    0747404001
    [2] Uca stenodactylus
    Last Modified in 02/12/20
    0747404001
    [3] Uca tangeri
    Last Modified in 02/12/20
    1777700001
    [4] Uca intermedia
    Last Modified in 02/12/20
    1777700001
    [5] Uca heteropleura
    Last Modified in 02/12/20
    1777700001
    [6] Uca stylifera
    Last Modified in 02/12/20
    1777700001
    [7] Uca major
    Last Modified in 02/12/20
    1777700001
    [8] Uca monilifera
    Last Modified in 02/12/20
    780000001
    [9] Uca princeps
    Last Modified in 02/12/20
    0787800001
    [10] Uca maracoani
    Last Modified in 02/12/20
    1777700001
    [11] Uca insignis
    Last Modified in 02/12/20
    1777700001
    [12] † Uca ornata
    Last Modified in 02/12/20
    0787800001
    [13] † Uca marinae
    Last Modified in 02/12/20
    21575700001
    [14] † Uca antiqua
    Last Modified in 02/12/20
    48303000001
    [15] † Uca ornata bique
    Last Modified in 02/12/20
    27515100001


    Project views

    type number of views Individual items viewed (where applicable)
    Total project views1082
    Project overview168
    Matrix views149Matrix uploaded by the author (15 views); Uca data matrix (prepared by MorphoBank curators from original submission) (15 views); Matrix landing page (119 views);
    Media views287Media search (254 views); M424462 (33 views);
    Specimen list115
    Taxon list71
    Documents list105
    Views for media list73
    Bibliography114




    Project downloads

    type number of downloads Individual items downloaded (where applicable)
    Total downloads from project25
    Project downloads23
    Matrix downloads2Matrix uploaded by the author (2 downloads);