Project 805: S. Rak,J. Ortega-Hernández,D. A. Legg. 2012. A revision of the Late Ordovician marrellomorph arthropod Furca bohemica from Czech Republic. Acta Palaeontologica Polonica. 58 (3):615-628.
Specimen: † Furca bohemica (National Museum of Prague:NML40881)
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Abstract

The enigmatic marrellomorph arthropod Furca bohemica from the Upper Ordovician Letná Formation, is redescribed. Based on existing museum specimens and new material collected from the southern slope of Ostrý Hill (Beroun, Czech Republic), the morphology and taphonomy of F. bohemica is reappraised and expanded to produce a new anatomical interpretation. The previously distinct taxa F. pilosa and Furca sp., are synonymised with F. bohemica, the latter being represented by a tapho-series in which decay has obscured some of the diagnostic features. A cladistic analysis indicates close affinities between F. bohemica and the Hunsrück Slate marrellomorph Mimetaster hexagonalis, together forming the Family Mimetasteridae, contrary to previous models for marrellomorph internal relationships. As with other representatives of the group, the overall anatomy of F. bohemica is consistent with a benthic, or possibly nektobenthic, mode of life. The depositional setting of the Letná Formation indicates that F. bohemica inhabited a shallow marine environment, distinguishing it palaeoecologically from all other known marrellomorphs, which have been reported from the continental shelf.


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Project DOI: 10.7934/P805, http://dx.doi.org/10.7934/P805
This project containsMatrices
  • 1 Media
  • 1 Matrix
  • 7 Taxa
  • 1 Specimen
  • 16 Characters
Total size of project's media files: 7 MB

Download Project SDD File
Total scored cells: 152
Total media associated with cells: 0
Total labels associated with cell media: 0
Characters
Total characters: 16
Total characters with associated media: 0
Total characters with media with labels: 0
Total character states: 32
Total character states with associated media: 0
Total character states with media with labels:0
Total unordered/ordered characters:16/0
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MorphoBank Project 805


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    member name taxa specimens media chars character
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    Jo Wolfe
    Project Administrator
    Last logged in 03/16/13
    7111601100152
    (147, 0, 5)
    0000
    MorphoBank Curator
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    Last logged in 06/26/14
    000000000
    (0, 0, 0)
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    David Legg
    Full membership
    Last logged in 10/18/12
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    Javier Ortega-Hernández
    Full membership
    Last logged in 03/16/13
    000000000
    (0, 0, 0)
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    Taxonomic Overview for Matrix 'M2003' (7 Taxa)

    taxon unscored
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    "-" cellscell images labels on
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    [1] † Olenoides serratus
    Last Modified in 12/05/13
    2201301004
    [2] † Naraoia compacta
    Last Modified in 12/05/13
    -1231601004
    [3] † Marrella splendens
    Last Modified in 12/05/13
    -1251700004
    [4] † Furca bohemica
    Last Modified in 12/05/13
    106600004
    [5] † Mimetaster hexagonalis
    Last Modified in 12/05/13
    -1261700004
    [6] † Vachonisia rogeri
    Last Modified in 12/05/13
    -1211601004
    [7] † Xylokorys chledophilia
    Last Modified in 12/05/13
    -1261602004


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