Project 5407: M. Nohejlová, E. Nardin, O. Fatka, L. Kašička, M. Szabad. 2019. Morphology, palaeoecology and phylogenetic interpretation of the Cambrian echinoderm Vyscystis (Barrandian area, Czech Republic). Journal of Systematic Palaeontology. 17 (19):1619-1634.
Specimen: † Lepidocystis wanneri (unvouchered)
View: Full Body

Abstract

The lepidocystoid echinoderm Vyscystis is known from the mid-Cambrian (Drumian) Jince Formation of the Příbram-Jince Basin (Czech Republic). Recently collected specimens of this genus, which are very well preserved, provide important new information, resulting in an improved understanding of their morphology (particularly the oral surface), growth trends and an assessment of their phylogenetic position and palaeoecology. Vyscystis is characterized by an aboral imbricate cup and a flattened tessellate oral surface, bearing exotomous curved ambulacra supporting coiled brachioles. A phylogenetic analysis suggests a basal position of lepidocystoids among blastozoans. Vyscystis shares plesiomorphic characters with other lepidocystoids (e.g. calyx) and some edrioasteroids (curvature of the ambulacra). It shows homoplasies (exotomous ambulacral pattern and coiled brachioles) with more derived eocrinoids (e.g. Gogia). Vyscystis was probably a low-level suspension feeder, living attached to hard debris on a soft substrate. Attachment to skeletal fragments was probably achieved by some sort of ‘biogluing’.


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Article DOI: 10.1080/14772019.2018.1541485

Project DOI: 10.7934/P5407, http://dx.doi.org/10.7934/P5407
This project containsMatrices
  • 1 Media
  • 1 Matrix
  • 2 Documents
  • 10 Taxa
  • 1 Specimen
  • 15 Characters
Total size of project's media files: 4.77M

Download Project SDD File
Total scored cells: 140
Total media associated with cells: 0
Total labels associated with cell media: 0
Characters
Total characters: 15
Total characters with associated media: 0
Total characters with media with labels: 0
Total character states: 41
Total character states with associated media: 0
Total character states with media with labels:0
Total unordered/ordered characters:15/0
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MorphoBank Project 5407
  • Creation Date:
    24 July 2024
  • Publication Date:
    31 July 2024

    Authors' Institutions

    • Charles University in Prague

    • Université de Toulouse



    Members

    member name taxa specimens media chars character
    media
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    cell scorings
    (scored, NPA, "-")
    cell
    medialabels
    rules
    Marisol Manns
    Project Administrator
    10111500140
    (137, 0, 3)
    000


    Taxonomic Overview for Matrix 'M30001' (10 Taxa)

    taxon unscored
    cells
    scored
    cells
    no cell
    support
    NPA
    cells
    "-" cellscell images labels on
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    [1] † Stromatocystites pentagularis
    Taxon name last Modified on 07/24/24
    0141401001
    [2] † Lepidocystis wanneri
    Taxon name last Modified on 07/24/24
    0151500001
    [3] † Kinzercystis durhami
    Taxon name last Modified on 07/24/24
    0151500001
    [4] † Vyscystis ubaghsi
    Taxon name last Modified on 07/24/24
    0151500001
    [5] † Felbabkacystis luckae
    Taxon name last Modified on 07/24/24
    3121200001
    [6] † Akadocrinus jani
    Taxon name last Modified on 07/24/24
    3121200001
    [7] † Gogia prolifica
    Taxon name last Modified on 07/24/24
    1141400001
    [8] † Lichenoides priscus
    Taxon name last Modified on 07/24/24
    3121200001
    [9] † Ascocystites drabowiensis
    Taxon name last Modified on 07/24/24
    0141401001
    [10] † Macrocystella bohemica
    Taxon name last Modified on 07/24/24
    0141401001