Project 2409: M. K. Futey, M. A. Gandolfo, M. C. Zamaloa, R. Cúneo, G. Cladera. 2012. Arecaceae Fossil Fruits from the Paleocene of Patagonia, Argentina. Botanical Review. 78 (3):205-234.
Specimen: † Tripylocarpa aestuaria (MPEF/Pb:3766, 3768, 3769, 3826-3830)

Abstract

We describe fossil fruits collected from outcrops of the Salamanca Fm. (Paleocene, Danian, 63.3–61.9 Ma) at the Estancia Las Violetas locality, Chubut, Argentina that show affinities with members of the Subtribe Attaleinae, Tribe Cocoseae, Subfamily Arecoideae within the Arecaceae. The fossils are preserved as permineralizations, and were examined by longitudinal, tangential and cross-sections, as well as by the application of Computed Tomography Scanning technology (CT Scan). The fruits are ovoid drupes with 3 longitudinal grooves delimiting three valves; displaying apical stigmatic remains and a single apical germination pore. The exocarp and mesocarp are fused and anatomically indistinguishable one from another; they contain longitudinal fibrous bands with brachysclereids. A centrally placed seed occupies the single locule entirely; the seeds are deltoid with a basal hilum and acuminate tip while the endosperm is ruminate. The taxonomic position of the fossils was explored using phylogenetic analyses of molecular sequences combined with morphological data. Along with the suite of morphological characters that points to an affinity with the Subtribe Attaleinae, Tribe Cocoseae, subfamily Arecoideae, the results of the combined phylogenetic analyses confirm the taxonomic placement. This report constitutes the first confirmed record for the Subtribe Attaleinae worldwide and the first record of fossil palm fruits from Argentina.


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Article DOI: DOI 10.1007/s12229-012-9100-9

Project DOI: 10.7934/P2409, http://dx.doi.org/10.7934/P2409
This project containsMatrices
  • 12 Media
  • 1 Matrix
  • 19 Taxa
  • 12 Specimens
  • 14 Characters
Total size of project's media files: 13 MB

Download Project SDD File
Total scored cells: 269
Total media associated with cells: 0
Total labels associated with cell media: 0
Characters
Total characters: 14
Total characters with associated media: 0
Total characters with media with labels: 0
Total character states: 29
Total character states with associated media: 0
Total character states with media with labels:0
Total unordered/ordered characters:14/0
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MorphoBank Project 2409

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    Members

    member name taxa specimens media chars character
    media
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    cell scorings
    (scored, NPA, "-")
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    Dorien de Vries
    Project Administrator
    Last logged in 05/03/16
    1912121400269
    (224, 0, 45)
    000
    Maria Alejandra Gandolfo
    Full membership
    Last logged in 05/03/16
    0000000
    (0, 0, 0)
    000


    Taxonomic Overview for Matrix 'M23904' (19 Taxa)

    taxon unscored
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    scored
    cells
    no cell
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    "-" cellscell images labels on
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    [1] Mauritia flexulosa
    Last Modified in 04/06/16
    0131301002
    [2] Trithrinax campestris
    Last Modified in 04/24/16
    0131301002
    [3] Sabal bermudana
    Last Modified in 04/06/16
    0121103002
    [4] Nypa fruticans
    Last Modified in 04/24/16
    0111103002
    [5] Ceroxylon quindiuense
    Last Modified in 04/24/16
    0121103002
    [6] Pseudophoenix vinifera
    Last Modified in 04/24/16
    0111103002
    [7] Geonoma congesta
    Last Modified in 04/24/16
    0111103002
    [8] Socratea exorrhiza
    Last Modified in 04/24/16
    0111103002
    [9] Chamaedorea microspadix
    Last Modified in 04/24/16
    1101003002
    [10] Synechanthus warscewiczianus
    Last Modified in 04/24/16
    0121103002
    [11] Barcella odora
    Last Modified in 04/06/16
    1111102002
    [12] Elaeis guineensis
    Last Modified in 04/24/16
    0121202002
    [13] Acrocomia aculeata
    Last Modified in 04/06/16
    0121202002
    [14] Bactris gasipaes
    Last Modified in 04/24/16
    0121202002
    [15] Cocos nucifera
    Last Modified in 04/24/16
    0121202002
    [16] Attalea allenii
    Last Modified in 04/06/16
    0121202002
    [17] Syagrus smithii
    Last Modified in 04/06/16
    0131202002
    [18] Lyctocaryum weddellianum
    Last Modified in 04/06/16
    0131202002
    [19] † Tripylocarpa aestuaria
    Last Modified in 04/24/16
    0111103002


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