Project 3239: B.A. Atkinson. 2020. Fossil evidence for a Cretaceous rise of the mahogany family. American Journal of Botany. 107:1-7.
Specimen: † Manchestercarpa vancouverensis (unvouchered)
View: Longitudinal section

Abstract

PREMISE: The mahogany family (Meliaceae) is an angiosperm lineage comprising many species that are important elements in tropical ecosystems, and is often used as a study system to understand the evolution of tropical rainforests. While divergence time studies have estimated a Cretaceous origin for the family, no unequivocal fossils of that age have been described. Here, the first Cretaceous evidence for Meliaceae is reported, based on an exceptionally well-preserved fruit from the Upper Cretaceous (79–72 Ma, Campanian) of North America.
METHODS: The fossil fruit was prepared using traditional paleobotanical techniques. Bayesian phylogenetic analyses using morphological and molecular data were conducted to assess the phylogenetic position of the Cretaceous fruit in Meliaceae and to assess the effect of morphology for inferring the overall pattern of phylogeny for the family.
RESULTS: The fruit consists of a fleshy mesocarp and a woody endocarp with a hollow center, nine locules, loculicidal sutures, and one subapically attached seed per locule that has an enlarged sarcotesta near the hilum. The combination of characters in this fruit is strikingly similar to the genus Melia L. Phylogenetic analyses recover the Cretaceous fruit as being closely related to Melia and highlights the effect of fruit morphological data for inferring the overall pattern of phylogeny in Meliaceae. There are a few structural differences between the fossil fruit of this study and Melia; thus, the newly characterized Cretaceous taxon is named Manchestercarpa vancouverensis gen. et sp. nov.
DISCUSSION: These results clearly confirm a Cretaceous origin for Meliaceae and that important tropical families were present prior to the development of modern tropical ecosystems in the Cenozoic.


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Article DOI: doi:10.1002/ajb2.1416

Project DOI: 10.7934/P3239, http://dx.doi.org/10.7934/P3239
This project containsMatrices
  • 1 Media
  • 1 Matrix
  • 53 Taxa
  • 1 Specimen
  • 18 Characters
Total size of project's media files: 5.78M

Download Project SDD File
Total scored cells: 891
Total media associated with cells: 0
Total labels associated with cell media: 0
Characters
Total characters: 18
Total characters with associated media: 0
Total characters with media with labels: 0
Total character states: 36
Total character states with associated media: 0
Total character states with media with labels:0
Total unordered/ordered characters:18/0
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MorphoBank Project 3239

    Authors' Institutions

    • University of Kansas



    Members

    member name taxa specimens media chars character
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    (scored, NPA, "-")
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    Brian Atkinson
    Project Administrator
    Last logged in 01/17/20
    53111800891
    (692, 0, 199)
    000


    Taxonomic Overview for Matrix 'M26333' (49 Taxa)

    taxon unscored
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    [1] Aglaia elaeagnoidea
    Last Modified in 11/05/19
    0161305001
    [2] Ailanthus altissima
    Last Modified in 11/05/19
    1111106001
    [3] Anthocarapa nitidula
    Last Modified in 11/05/19
    0131305001
    [4] Aphanamixis polystachya
    Last Modified in 11/05/19
    0131305001
    [5] Astrotrichilia sp
    Last Modified in 11/05/19
    0141404001
    [6] Azadirachta indica
    Last Modified in 11/05/19
    0141404001
    [7] Cabralea canjerana
    Last Modified in 11/05/19
    0131305001
    [8] Calodecaryia crassifolia
    Last Modified in 11/05/19
    0141404001
    [9] Capuronianthus mahafalensis
    Last Modified in 11/05/19
    0161404001
    [10] Carapa guianensis
    Last Modified in 11/05/19
    1141304001
    [11] Cedrela odorata
    Last Modified in 11/05/19
    0171701001
    [12] Chisocheton macrophyllus
    Last Modified in 11/05/19
    0161305001
    [13] Chukrasia tabularis
    Last Modified in 11/05/19
    2151501001
    [14] Cipadessa baccifera
    Last Modified in 11/05/19
    1141304001
    [15] Dysoxylum gaudichaudianum
    Last Modified in 11/05/19
    0151305001
    [16] Ekebergia capensis
    Last Modified in 11/05/19
    0161404001
    [17] Guarea glabra
    Last Modified in 11/05/19
    0171404001
    [18] Heckeldora staudtii
    Last Modified in 11/05/19
    0131206001
    [19] Humbertioturraea sp
    Last Modified in 11/05/19
    1121205001
    [20] Khaya anthotheca
    Last Modified in 11/05/19
    0171701001
    [21] Lansium domesticum
    Last Modified in 11/05/19
    0121206001
    [22] Lepidotrichilia volkensii
    Last Modified in 11/05/19
    1131304001
    [23] Lovoa swynnertonii
    Last Modified in 11/05/19
    0171701001
    [24] Malleastrum mandenense
    Last Modified in 11/05/19
    0121206001
    [25] Melia azedarach
    Last Modified in 11/05/19
    0141404001
    [26] † Melia yakimaensis
    Last Modified in 01/17/20
    3111104001
    [27] Munronia humilis
    Last Modified in 11/05/19
    0151404001
    [28] Naregamia alata
    Last Modified in 11/05/19
    1131304001
    [29] Nymania capensis
    Last Modified in 11/05/19
    0141404001
    [30] Owenia vernicosa
    Last Modified in 11/05/19
    0141404001
    [31] † Manchestercarpa vancouverensis
    Last Modified in 01/17/20
    3111104001
    [32] Pseudobersama mossambicensis
    Last Modified in 11/05/19
    0151404001
    [33] Pseudocedrela kotschyi
    Last Modified in 11/05/19
    0171701001
    [34] Pseudoclausena chrysogyne
    Last Modified in 11/05/19
    2111105001
    [35] Quassia amara
    Last Modified in 11/05/19
    1111106001
    [36] Quivisianthe papinae
    Last Modified in 11/05/19
    0151503001
    [37] Reinwardtiodendron kinabaluense
    Last Modified in 11/05/19
    0121206001
    [38] Ruagea pubescens
    Last Modified in 11/05/19
    0141305001
    [39] Sandoricum cf koetijape
    Last Modified in 11/05/19
    0131305001
    [40] Schmardaea microphylla
    Last Modified in 11/05/19
    1161601001
    [41] Simarouba glauca
    Last Modified in 11/05/19
    1111106001
    [42] Swietenia macrophylla
    Last Modified in 11/05/19
    0171701001
    [43] Synoum glandulosum
    Last Modified in 11/05/19
    0131305001
    [44] Toona sp
    Last Modified in 11/05/19
    1171601001
    [45] Trichilia emetica
    Last Modified in 11/05/19
    0171404001
    [46] Turraea sericea
    Last Modified in 11/05/19
    0161404001
    [47] Vavaea amicorum
    Last Modified in 11/05/19
    0161305001
    [48] Walsura tubulata
    Last Modified in 11/05/19
    0121206001
    [49] Xylocarpus mekongensis
    Last Modified in 11/05/19
    1131304001


    Project views

    type number of views Individual items viewed (where applicable)
    Total project views2488
    Project overview270
    Matrix views186Matrix landing page (159 views); Meliaceae fruit matrix (27 views);
    Media views466Media search (404 views); M681761 (62 views);
    Taxon list1170
    Views for media list120
    Specimen list195
    Bibliography80
    Documents list1




    Project downloads

    type number of downloads Individual items downloaded (where applicable)
    Total downloads from project39
    Project downloads35
    Matrix downloads4Meliaceae fruit matrix (4 downloads);