Project 3696: G. Shi, A. B. Leslie, P. S. Herendeen, N. Ichinnorov, M. Takahashi, P. Knopf, P. R. Crane. 2014. Whole-Plant Reconstruction and Phylogenetic Relationships of Elatides zhoui sp. nov. (Cupressaceae) from the Early Cretaceous of Mongolia. International Journal of Plant Sciences. 175 (8):911-930.
Specimen: Cunninghamia lanceolata (unvouchered)
View: NA

Abstract

Premise of research. Exceptionally well-preserved lignified fossils from the Early Cretaceous of Mongolia include abundant conifer leafy shoots with attached pollen cones and seed cones. A whole-plant reconstruction based on these fossils enables a critical evaluation of the relationship of this extinct plant with extant conifers.

Methodology. Bulk lignite samples collected from the Tugrug lignite mine were disaggregated in water, cleaned with hydrochloric and hydrofluoric acids, washed, and dried in air. Fossils were then examined using light and scanning electron microscopy.

Pivotal results. Elatides zhoui sp. nov. has helically arranged leaves with two narrow lateral stomatal bands, predominantly on the adaxial leaf surface. Pollen cones are usually borne laterally on shoots in tight spirals; each microsporophyll bears three pollen sacs that produce nonsaccate pollen with a small circular aperture. Seed cones have numerous bract-scale complexes, each with a small membranous ovuliferous scale and four to six seeds. Elatides zhoui is the most completely understood of all described Elatides species, and major features of seed cone and pollen cone morphology indicate that it is most closely related to extant Cunninghamia, which today has two species restricted to East Asia. Morphological cladistic analyses using parsimony resolved an expanded Cunninghamioideae clade, which includes extant Cunninghamia, E. zhoui, and other Cunninghamia-like fossils, as the sister group to all other extant Cupressaceae sensu lato.

Conclusions. Elatides zhoui provides further evidence for the diversity of Cupressaceae sensu lato during the Cretaceous and supports the hypothesis that cunninghamioid conifers in particular were diverse and widespread during the early evolution of the Cupressaceae.



Read the article »

Article DOI: 10.1086/677651

Project DOI: 10.7934/P3696, http://dx.doi.org/10.7934/P3696
This project containsMatrices
  • 1 Media
  • 1 Matrix
  • 2 Documents
  • 22 Taxa
  • 1 Specimen
  • 22 Characters
Total size of project's media files: 126.73k

Download Project SDD File
Total scored cells: 458
Total media associated with cells: 0
Total labels associated with cell media: 0
Characters
Total characters: 22
Total characters with associated media: 0
Total characters with media with labels: 0
Total character states: 58
Total character states with associated media: 0
Total character states with media with labels:0
Total unordered/ordered characters:22/0
Currently Viewing:
MorphoBank Project 3696

    This research
    supported by

    Authors' Institutions

    • Chinese Academy of Sciences

    • Niigata University

    • Yale University

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

    • Chicago Botanic Garden

    • Mongolian Academy of Sciences

    • Botanischer Garten Rombergpark



    Members

    member name taxa specimens media chars character
    media
    labels
    cell scorings
    (scored, NPA, "-")
    cell
    medialabels
    rules
    MorphoBank Curator
    Project Administrator
    Last logged in 04/30/20
    22112200458
    (457, 0, 1)
    000
    Gongle Shi
    Full membership
    Last logged in Never
    0000000
    (0, 0, 0)
    000


    Taxonomic Overview for Matrix 'M26610' (22 Taxa)

    taxon unscored
    cells
    scored
    cells
    no cell
    support
    NPA
    cells
    "-" cellscell images labels on
    cell images
    member
    access
    [1] Cedrus deodara
    Last Modified in 04/30/20
    0222200002
    [2] Sciadopitys verticillata
    Last Modified in 04/30/20
    0222101002
    [3] Cunninghamia lanceolata
    Last Modified in 04/30/20
    0222200002
    [4] Taiwania cryptomerioides
    Last Modified in 04/30/20
    0222200002
    [5] Athrotaxis laxifolia
    Last Modified in 04/30/20
    0222200002
    [6] Sequoiadendron giganteum
    Last Modified in 04/30/20
    0222200002
    [7] Sequoia sempervirens
    Last Modified in 04/30/20
    0222200002
    [8] Metasequoia glyptostroboides
    Last Modified in 04/30/20
    0222200002
    [9] Cryptomeria japonica
    Last Modified in 04/30/20
    0222200002
    [10] Glyptostrobus pensilis
    Last Modified in 04/30/20
    0222200002
    [11] Taxodium distichum
    Last Modified in 04/30/20
    0222200002
    [12] Thuja occidentalis
    Last Modified in 04/30/20
    0222200002
    [13] Platycladus orientalis
    Last Modified in 04/30/20
    0222200002
    [14] Austrocedrus chilensis
    Last Modified in 04/30/20
    0222200002
    [15] † Elatides zhoui
    Last Modified in 04/30/20
    0222200002
    [16] † Elatides williamsonii
    Last Modified in 04/30/20
    0222200002
    [17] † Elatides harrisii
    Last Modified in 04/30/20
    2202000002
    [18] † Sewardiodendron laxum
    Last Modified in 04/30/20
    0222200002
    [19] † Cunninghamia taylorii
    Last Modified in 04/30/20
    3191900002
    [20] † Austrohamia minuta
    Last Modified in 04/30/20
    7151500002
    [21] † Cunninghamiostrobus goedertii
    Last Modified in 04/30/20
    6161600002
    [22] † Hubbardiastrobus cunninghamioides
    Last Modified in 04/30/20
    9131300002


    Project views

    type number of views Individual items viewed (where applicable)
    Total project views180
    Project overview37
    Matrix views36Matrix landing page (24 views); Matrix from the paper of Shi et al - 2014 (prepared by MorphoBank curators from original submission) (12 views);
    Documents list17
    Media views22Media search (18 views); M687819 (4 views);
    Views for media list7
    Specimen list12
    Taxon list44
    Bibliography5




    Project downloads

    type number of downloads Individual items downloaded (where applicable)
    Total downloads from project15
    Project downloads5
    Matrix downloads8Matrix from the paper of Shi et al - 2014 (prepared by MorphoBank curators from original submission) (8 downloads);
    Document downloads2Morphological Matrix in PDF (1 download); Character list (1 download);