Project 4174: A. S. Gale. 2021. Taxonomy and phylogeny of the ‘football stars’ (Asteroidea, Sphaerasteridae). Journal of Systematic Palaeontology. 19 (10):691-741.
Specimen: Nymphaster arenatus (unvouchered)
View: preserved specimen

Abstract

The phylogenetic relationships of spherical and sub-spherical asteroids, belonging to the valvatidan family Sphaerasteridae (Early Jurassic–Recent), are revised in the light of abundant new fossil material from Europe and North Africa. The family had radiated by the Early Jurassic and the family Stauranderasteridae is its sister group. Morphological changes involved the formation of a domed body, the absence of differentiated marginal ossicles and the transformation of dorsal abactinal ossicles into a tessellation of large, thin plates. The family Podosphaerasteridae is placed in synonomy with the Sphaerasteridae. New taxa include Eosphaeraster amellagensis gen. et sp. nov., Bulbosphaeraster valettei gen. et sp. nov., Pouzaster pocknotata gen. et sp. nov., Rugosphaeraster rugenensis gen. et sp. nov., Echinosphaeraster gen. nov. (type species: Asterias scutata Goldfuss, 1833) and Valettaster thuyi sp. nov. It is suggested that the morphology of Sphaerasteridae is related to their close association with sponges.


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Article DOI: 10.1080/14772019.2021.1960911

Project DOI: 10.7934/P4174, http://dx.doi.org/10.7934/P4174
This project containsMatrices
  • 1 Media
  • 1 Matrix
  • 2 Documents
  • 13 Taxa
  • 1 Specimen
  • 30 Characters
Total size of project's media files: 11.94M

Download Project SDD File
Total scored cells: 363
Total media associated with cells: 0
Total labels associated with cell media: 0
Characters
Total characters: 30
Total characters with associated media: 0
Total characters with media with labels: 0
Total character states: 68
Total character states with associated media: 0
Total character states with media with labels:0
Total unordered/ordered characters:30/0
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MorphoBank Project 4174

    Authors' Institutions

    • Natural History Museum, London

    • University of Portsmouth



    Members

    member name taxa specimens media chars character
    media
    labels
    cell scorings
    (scored, NPA, "-")
    cell
    medialabels
    rules
    MorphoBank Curator
    Project Administrator
    13113000363
    (363, 0, 0)
    000
    Andrew Gale
    Full membership
    0000000
    (0, 0, 0)
    000


    Taxonomic Overview for Matrix 'M28682' (13 Taxa)

    taxon unscored
    cells
    scored
    cells
    no cell
    support
    NPA
    cells
    "-" cellscell images labels on
    cell images
    member
    access
    [1] Nymphaster arenatus
    Last Modified in 01/28/22
    0303000002
    [2] † Stauraster primitivus
    Last Modified in 01/28/22
    6242400002
    [3] † Sphaeraster tabulatus
    Last Modified in 01/28/22
    0303000002
    [4] † Echinosphaeraster scutatus
    Last Modified in 01/28/22
    2282800002
    [5] † Testudinaster peregrinus
    Last Modified in 01/28/22
    16141400002
    [6] † Eosphaeraster amellagensis
    Last Modified in 01/28/22
    1292900002
    [7] † Bulbosphaeraster valettei
    Last Modified in 01/28/22
    2282800002
    [8] † Valettaster argus
    Last Modified in 01/28/22
    0303000002
    [9] † Podosphaeraster pulvillus
    Last Modified in 01/28/22
    0303000002
    [10] Asterodiscides elegans
    Last Modified in 01/28/22
    0303000002
    [11] Culcita novaeguiniae
    Last Modified in 01/28/22
    0303000002
    [12] † Manfredaster bulbiferus
    Last Modified in 01/28/22
    0303000002
    [13] † Stauranderaster squamatus
    Last Modified in 01/28/22
    0303000002


    Project views

    type number of views Individual items viewed (where applicable)
    Total project views5561
    Media views1251Media search (1065 views); M838515 (186 views);
    Project overview453
    Documents list276
    Matrix views339Matrix landing page (307 views); Data matrix reconstructed from separate files in supplemental materials (32 views);
    Bibliography275
    Views for media list373
    Taxon list1967
    Specimen list627




    Project downloads

    type number of downloads Individual items downloaded (where applicable)
    Total downloads from project23
    Project downloads19
    Document downloads3Character labels and state descriptions in docx format (3 downloads);
    Matrix downloads1Data matrix reconstructed from separate files in supplemental materials (1 download);