Project 3184: Fabiany Herrera, Gongle Shi, Chris Mays, Niiden Ichinnorov, Masamichi Takahashi, Joseph J. Bevitt, Patrick S. Herendeen, Peter R. Crane. 2020. Reconstructing Krassilovia mongolica supports recognition of a new and unusual group of Mesozoic conifers. PLOS ONE. 15 (1) (e0226779):1-21.
Specimen: † Krassilovia mongolica - podozamites harrisii (unvouchered)
View: 3D reconstruction

Abstract

Previously unrecognized anatomical features of the cone scales of the enigmatic Early Cretaceous conifer Krassilovia mongolica include the presence of transversely oriented paracytic stomata, which is unusual for all other extinct and extant conifers. Identical stomata are present on co-occurring broad, linear, multiveined leaves assigned to Podozamites harrisii, providing evidence that K. mongolica and P. harrisii are the seed cones and leaves of the same extinct plant. Phylogenetic analyses of the relationships of the reconstructed Krassilovia plant place it in an informal clade that we name the Krassilovia Clade, which also includes Swedenborgia cryptomerioides–Podozamites schenkii, and Cycadocarpidium erdmanni–Podozamites schenkii. All three of these plants have linear leaves that are relatively broad compared to most living conifers, and that are also multiveined with transversely oriented paracytic stomata. We propose that these may be general features of the Krassilovia Clade. Paracytic stomata, and other features of this new group, recall features of extant and fossil Gnetales, raising questions about the phylogenetic homogeneity of the conifer clade similar to those raised by phylogenetic analyses of molecular data.


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Article DOI: https://doi.org/10.1371/journal.pone.0226779
This project containsMatrices
  • 1 Media
  • 1 Matrix
  • 39 Taxa
  • 1 Specimen
  • 52 Characters
Total size of project's media files: 1.42M

Download Project SDD File
Total scored cells: 1731
Total media associated with cells: 0
Total labels associated with cell media: 0
Characters
Total characters: 52
Total characters with associated media: 0
Total characters with media with labels: 0
Total character states: 137
Total character states with associated media: 0
Total character states with media with labels:0
Total unordered/ordered characters:52/0
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MorphoBank Project 3184

    This research
    supported by

    Authors' Institutions

    • Swedish Museum of Natural History (Naturhistoriska riksmuseet) Stockholm

    • Chinese Academy of Sciences

    • Monash University

    • Niigata University

    • Yale University

    • Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences

    • Chicago Botanic Garden

    • Australian Nuclear Science and Technology Organisation

    • Mongolian Academy of Sciences

    • Oak Spring Garden Foundation



    Members

    member name taxa specimens media chars character
    comms
       
    notes  media
    labels
    cell scorings
    (scored, NPA, "-")
    cell
    medialabels
    rules
    Fabiany Herrera
    Project Administrator
    Last logged in 01/15/20
    391152052001731
    (1678, 1, 52)
    000
    Peter Crane
    Observer
    Last logged in 05/19/18
    000000000
    (0, 0, 0)
    000
    Patrick Herendeen
    Observer
    Last logged in 07/10/18
    000000000
    (0, 0, 0)
    000
    Gongle Shi
    Observer
    Last logged in Never
    000000000
    (0, 0, 0)
    000


    Taxonomic Overview for Matrix 'M26014' (39 Taxa)

    taxon unscored
    cells
    scored
    cells
    no cell
    support
    NPA
    cells
    "-" cellscell images labels on
    cell images
    member
    access
    [1] † Aethophyllum stipulare
    Last Modified in 04/16/19
    4464602004
    [2] † Barthelia furcata
    Last Modified in 04/16/19
    4504800004
    [3] † Callistophyton poroxyloides
    Last Modified in 04/16/19
    42020127004
    [4] † Concholepis harrisii
    Last Modified in 04/16/19
    23292900004
    [5] † Cordaixylon dumusum
    Last Modified in 04/16/19
    0484804004
    [6] † Dicranophyllum hallei
    Last Modified in 04/16/19
    19333300004
    [7] † Dolomitia cittertiae
    Last Modified in 04/16/19
    18353400004
    [8] † Emporia cryptica
    Last Modified in 04/16/19
    0555200004
    [9] † Emporia lockardii
    Last Modified in 04/16/19
    1555100004
    [10] † Emporia royalii
    Last Modified in 05/20/19
    0555200004
    [11] † Ernestiodendron flliciforme
    Last Modified in 04/16/19
    6464600004
    [12] † Ferugliocladus spp.
    Last Modified in 04/16/19
    3494900004
    [13] † Genoites patagonica
    Last Modified in 04/16/19
    14383800004
    [14] † Hanskerpia hamiltonensis
    Last Modified in 04/16/19
    8474400004
    [15] † Majonica alpina
    Last Modified in 04/16/19
    10484200004
    [16] † Mesoxylon priapii
    Last Modified in 04/16/19
    0484804004
    [17] † Kungurodendron sharovii
    Last Modified in 04/16/19
    8464400004
    [18] † Ortiseia spp.
    Last Modified in 04/16/19
    6514600004
    [19] † Otovicia hypnoides
    Last Modified in 04/16/19
    1545100004
    [20] † Thucydia mahoningensis
    Last Modified in 04/16/19
    0535002004
    [21] † Timanostrobus muravievii
    Last Modified in 04/16/19
    9434300004
    [22] † Utrechtia floriniformis
    Last Modified in 04/16/19
    10434200004
    [23] † Voltzia hexagona
    Last Modified in 04/16/19
    10424200004
    [24] † Vojnovskyean plant
    Last Modified in 05/20/19
    18323202004
    [25] † Telemachus elongatus - heidiphyllum elongatum
    Last Modified in 04/16/19
    1494902004
    [26] † Swedenborgia cryptomerioides - podozamites schenkii
    Last Modified in 04/16/19
    15363502004
    [27] † Krassilovia mongolica - podozamites harrisii
    Last Modified in 04/16/19
    13383702004
    [28] † Cycadocarpidium erdmanni - podozamites schenkii
    Last Modified in 05/20/19
    14373602004
    [29] † Manifera talaris
    Last Modified in 04/16/19
    29252300004
    [30] † Pseudovoltzia liebeana
    Last Modified in 05/21/18
    12404000004
    [31] Sciadopitys verticillata
    Last Modified in 07/10/19
    0515101004
    [32] Cedrus deodara
    Last Modified in 07/10/19
    0525200004
    [33] † Schizolepidopsis canicularis
    Last Modified in 07/16/19
    12404000004
    [34] † Elatides zhoui
    Last Modified in 07/16/19
    3494900004
    [35] Cunninghamia lanceolata
    Last Modified in 07/10/19
    0525200004
    [36] † Dechellyia gormani - Masculostrobus clathratus
    Last Modified in 07/25/19
    12414000004
    [37] † Pararaucaria taquetrensis
    Last Modified in 11/01/19
    22303000004
    [38] † Frenelopsis ramosissima
    Last Modified in 11/01/19
    19333300004
    [39] † Lebowskia grandifolia
    Last Modified in 11/04/19
    13393702004


    Project views

    type number of views Individual items viewed (where applicable)
    Total project views445
    Project overview53
    Matrix views35Herrera et al_Krassilovia mongolica (9 views); Matrix landing page (26 views);
    Media views87Media search (72 views); M683408 (15 views);
    Bibliography16
    Taxon list187
    Views for media list24
    Specimen list43




    Project downloads

    type number of downloads Individual items downloaded (where applicable)
    Total downloads from project13
    Matrix downloads4Herrera et al_Krassilovia mongolica (4 downloads);
    Project downloads9