Project 3923: E. Diaz-Berenguer, M. Moreno-Azanza, A. Badiola, J. I. Canudo. 2022. Neurocranial bones are key to untangling the sea cow evolutionary tree: osteology of the skull of Sobrarbesiren cardieli (Mammalia: Pan-Sirenia). Zoological Journal of the Linnean Society. 196 (4):1671-1703.
Specimen: † Sobrarbesiren cardieli (MPZ 2020/598/MPZ 2020/598:MPZ 2020/598)
View: Posterior and ventral

Abstract

The pan-sirenian Bauplan is conservative, probably owing to the constraints of adaptation to an aquatic lifestyle. Gathering morphological data from extinct forms is complex, resulting in poorly resolved phylogenies for stem pan-sirenians. Extant sirenians ossify the falx cerebri and the tentorium cerebelli, membranes of the dura mater of the brain attached to the parietal bone. Nevertheless, these ossifications are not present in some pan-sirenians. The basioccipital bone has received little attention in the literature except for establishing the relative age of individuals. Here, we present new cranial elements and a detailed description of the skull of Sobrarbesiren cardieli, a stem pan-sirenian from the Lutetian of Spain represented by eight individuals; we study its intraspecific variation and palaeoecological implications and explore the evolution of the endocranial structures and the basioccipital bone in pan-sirenians. Six new phylogenetic characters are added to the latest pan-sirenian dataset, resulting in a well-resolved topology where Sobrarbesiren is recovered close to the root, in a clade with Prototherium and Eotheroides aegyptiacum. The basioccipital bone and the ossified endocranial membranes have a phylogenetic signal, and the absence of such endocranial structures represents the plesiomorphic condition for pan-sirenians and is not diagnostic for the family Protosirenidae as previously believed.


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Article DOI: 10.1093/zoolinnean/zlac021

Project DOI: 10.7934/P3923, http://dx.doi.org/10.7934/P3923
This project containsMatrices
  • 1 Media
  • 1 Matrix
  • 2 Documents
  • 62 Taxa
  • 1 Specimen
  • 89 Characters
Total size of project's media files: 347.74k

Download Project SDD File
Total scored cells: 4150
Total media associated with cells: 0
Total labels associated with cell media: 0
Characters
Total characters: 89
Total characters with associated media: 0
Total characters with media with labels: 0
Total character states: 229
Total character states with associated media: 0
Total character states with media with labels:0
Total unordered/ordered characters:89/0
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MorphoBank Project 3923
  • Creation Date:
    10 February 2021
  • Publication Date:
    18 August 2023
  • Matrix downloads: 9

    Authors' Institutions

    • Universidad del Pais Vasco

    • Museu da Lourinha

    • Universidade Nova de Lisboa

    • Universidad de Zaragoza



    Members

    member name taxa specimens media chars character
    media
    labels
    cell scorings
    (scored, NPA, "-")
    cell
    medialabels
    rules
    Miguel Moreno
    Project Administrator
    1110000
    (0, 0, 0)
    000


    Taxonomic Overview for Matrix 'M29446' (62 Taxa)

    taxon unscored
    cells
    scored
    cells
    no cell
    support
    NPA
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    "-" cellscell images labels on
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    member
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    [1] † Phosphatherium
    Taxon name last Modified on 08/18/23
    28616100001
    [2] † Cornwallius sookensis
    Taxon name last Modified on 08/18/23
    26636300001
    [3] † Prorastomus sirenoides
    Taxon name last Modified on 08/18/23
    20696900001
    [4] † Pezosiren portelli
    Taxon name last Modified on 08/18/23
    17727200001
    [5] † Sobrarbesiren cardieli
    Taxon name last Modified on 08/15/23
    11827800001
    [6] † Ashokia antiqua
    Taxon name last Modified on 08/18/23
    41484800001
    [7] † Protosiren fraasi
    Taxon name last Modified on 08/18/23
    19707000001
    [8] † Protosiren smithae
    Taxon name last Modified on 08/18/23
    8818100001
    [9] † Libysiren sickenbergi
    Taxon name last Modified on 08/18/23
    20696900001
    [10] † Anomotherium langewieschei
    Taxon name last Modified on 08/18/23
    52373700001
    [11] † Miosiren kocki
    Taxon name last Modified on 08/18/23
    23666600001
    [12] † Potamosiren madgalenensis
    Taxon name last Modified on 08/18/23
    71181800001
    [13] † Ribodon limbatus
    Taxon name last Modified on 08/18/23
    69202000001
    [14] Trichechus manatus latirostris
    Taxon name last Modified on 08/15/23
    3868600001
    [15] Trichechus senegalensis
    Taxon name last Modified on 08/15/23
    3868600001
    [16] Trichechus inunguis
    Taxon name last Modified on 08/15/23
    5848400001
    [17] † Eotheriodes aegyptiacus
    Taxon name last Modified on 08/18/23
    31585800001
    [18] † Eotheroides clavigerum
    Taxon name last Modified on 08/18/23
    12777700001
    [19] † Eotheroides sandersi
    Taxon name last Modified on 08/18/23
    13767600001
    [20] † Eotheroides lambondrano
    Taxon name last Modified on 08/18/23
    40504900001
    [21] † Prototherium veronense
    Taxon name last Modified on 08/18/23
    30595900001
    [22] † Prototherium ausetanum
    Taxon name last Modified on 08/18/23
    46434300001
    [23] † Prototherium intermedium s.l.
    Taxon name last Modified on 08/18/23
    34555500001
    [24] † Eosiren libyca
    Taxon name last Modified on 08/18/23
    34555500001
    [25] † Eosiren imenti
    Taxon name last Modified on 08/18/23
    31585800001
    [26] † Halitherium taulannense
    Taxon name last Modified on 08/18/23
    14757500001
    [27] † Kaupitherium gruelli
    Taxon name last Modified on 08/18/23
    2878700001
    [28] † Kaupitherium bronni
    Taxon name last Modified on 08/18/23
    6838300001
    [29] † Lentiarenium cristolii
    Taxon name last Modified on 08/18/23
    34555500001
    [30] † Priscosiren atlantica
    Taxon name last Modified on 08/18/23
    13767600001
    [31] † Metaxytherium krahuletzi
    Taxon name last Modified on 08/18/23
    2878700001
    [32] † Metaxytherium medium
    Taxon name last Modified on 08/18/23
    13767600001
    [33] † Metaxytherium serresii
    Taxon name last Modified on 08/18/23
    2878700001
    [34] † Metaxytherium subapenninum
    Taxon name last Modified on 08/18/23
    6838300001
    [35] † Metaxytherium floridanum
    Taxon name last Modified on 08/18/23
    0898900001
    [36] † Metaxytherium crataegense
    Taxon name last Modified on 08/18/23
    2878700001
    [37] † Metaxytherium arctodites
    Taxon name last Modified on 08/18/23
    2878700001
    [38] † Dusisiren reinharti
    Taxon name last Modified on 08/18/23
    35565400001
    [39] † Dusisiren jordani
    Taxon name last Modified on 08/18/23
    5858400001
    [40] † Dusisiren dewana
    Taxon name last Modified on 08/18/23
    21686800001
    [41] † Hydrodamalis cuestae
    Taxon name last Modified on 08/18/23
    17727200001
    [42] † Hydrodamalis gigas
    Taxon name last Modified on 08/18/23
    4858500001
    [43] † Metaxytherium albifontanum
    Taxon name last Modified on 08/18/23
    1888800001
    [44] † Caribosiren turneri
    Taxon name last Modified on 08/18/23
    36535300001
    [45] † Crenatosiren olseni
    Taxon name last Modified on 08/18/23
    5848400001
    [46] † Nanosiren sanchezi
    Taxon name last Modified on 08/18/23
    36535300001
    [47] † Nanosiren garciae
    Taxon name last Modified on 08/18/23
    25646400001
    [48] Dugong dugon
    Taxon name last Modified on 08/15/23
    0898900001
    [49] † Callistosiren boriquensis
    Taxon name last Modified on 08/18/23
    18717100001
    [50] † Bharatisiren indica
    Taxon name last Modified on 08/18/23
    24656500001
    [51] † Bharatisiren kachchhensis
    Taxon name last Modified on 08/18/23
    31585800001
    [52] † Domningia sodhae
    Taxon name last Modified on 08/18/23
    21686800001
    [53] † Kutchisiren cylindrica
    Taxon name last Modified on 08/18/23
    27626200001
    [54] † Dioplotherium manigaulti
    Taxon name last Modified on 08/18/23
    26636300001
    [55] † Dioplotherium allisoni
    Taxon name last Modified on 08/18/23
    23666600001
    [56] † Culebratherium alemani
    Taxon name last Modified on 08/18/23
    19707000001
    [57] † MPEG-63V d. cf. D. allisoni
    Taxon name last Modified on 08/18/23
    18717100001
    [58] † ECOCHM-2491 diop. sp.
    Taxon name last Modified on 08/18/23
    30595900001
    [59] † Xenosiren yucateca
    Taxon name last Modified on 08/18/23
    57323200001
    [60] † Corystosiren varguezi
    Taxon name last Modified on 08/18/23
    41484800001
    [61] † Rytiodus heali
    Taxon name last Modified on 08/18/23
    25646400001
    [62] † Rytiodus capgrandi
    Taxon name last Modified on 08/18/23
    48414100001


    Project downloads

    type number of downloads Individual items downloaded (where applicable)
    Total downloads from project11
    Matrix downloads9Data matrix from author (9 downloads);
    Project downloads1
    Document downloads1Nexus file from author (1 download);