Project 3558: Ana Andruchow-Colombo, Peter Wilf, Ignacio H. Escapa. 2019. A South American fossil relative of Phyllocladus: Huncocladus laubenfelsii gen. et sp. nov. (Podocarpaceae), from the early Eocene of Laguna del Hunco, Patagonia, Argentina. Australian Systematic Botany. 32 (4):290-309.
Specimen: † Huncocladus laubenfelsii (MPEF/MPEF-Pb:MPEF-Pb 8028a)
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Abstract

Huncocladus laubenfelsii gen. et sp. nov. is described from the early Eocene (52 million years old) Laguna del Hunco site in Patagonia, Argentina, on the basis of a compression fossil with cuticle remains. The taxon has several similarities with Phyllocladus, together with characters that are absent in extant Phyllocladus species but are otherwise typical of the enclosing scale-leaved clade. Consequently, Huncocladus is interpreted as a relative of Phyllocladus, possibly belonging to its stem group. This view is supported by a phylogenetic analysis of Podocarpaceae, which recovers Huncocladus as sister to Phyllocladus within the here-termed phyllocladoid clade (Phyllocladus + Huncocladus). Huncocladus laubenfelsii is the first macrofossil record of the phyllocladoid lineage in South America or anywhere in the western hemisphere, vastly extending its historical range and constituting an additional lineage shared between Eocene Patagonia and extant and extinct Australasian and South east Asian rainforests. The disappearance of phyllocladoids from South America adds to the general extinction pattern described previously for southern hemisphere Podocarpaceae, associated with the family’s low drought tolerance in the face of climate change (i.e. aridification). Huncocladus is the oldest record of the phyllocladoids, and it represents anew reference point for temporal calibration and biogeographic inference for the evolution of conifers and Australasian rainforests.


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Article DOI: 10.1071/SB18043

Project DOI: 10.7934/P3558, http://dx.doi.org/10.7934/P3558
This project containsMatrices
  • 1 Media
  • 1 Matrix
  • 87 Taxa
  • 1 Specimen
  • 59 Characters
Total size of project's media files: 1 MB

Download Project SDD File
Total scored cells: 4241
Total media associated with cells: 0
Total labels associated with cell media: 0
Characters
Total characters: 59
Total characters with associated media: 0
Total characters with media with labels: 0
Total character states: 153
Total character states with associated media: 0
Total character states with media with labels:0
Total unordered/ordered characters:0/59
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MorphoBank Project 3558

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    member name taxa specimens media chars character
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    cell scorings
    (scored, NPA, "-")
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    Ana Andruchow-Colombo
    Project Administrator
    Last logged in 10/17/19
    871159004241
    (3725, 0, 516)
    000


    Taxonomic Overview for Matrix 'M26295' (86 Taxa)

    taxon unscored
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    [1] Cryptomeria japonica
    Last Modified in 10/17/19
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    [2] Wollemia nobilis
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    13444006001
    [3] Agathis atropurpurea
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    12444106001
    [4] Agathis australis
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    12454106001
    [5] Agathis borneensis
    Last Modified in 10/17/19
    12434106001
    [6] Agathis dammara
    Last Modified in 10/17/19
    13414006001
    [7] Agathis lanceolata
    Last Modified in 10/17/19
    12434106001
    [8] Agathis macrophylla
    Last Modified in 10/17/19
    12434106001
    [9] Agathis microstachya
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    12424106001
    [10] Agathis montana
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    12434106001
    [11] Agathis moorei
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    12434106001
    [12] Agathis ovata
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    [13] Agathis robusta
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    12424106001
    [14] Araucaria bernieri
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    10434108001
    [15] Araucaria biramulata
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    11424008001
    [16] Araucaria columnaris
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    [17] Araucaria cunninghamii
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    [18] Araucaria heterophylla
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    10434108001
    [19] Araucaria humboldtensis
    Last Modified in 10/17/19
    10434108001
    [20] Araucaria laubenfelsii
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    10434108001
    [21] Araucaria luxurians
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    10434108001
    [22] Araucaria montana
    Last Modified in 10/17/19
    10434108001
    [23] Araucaria muelleri
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    10434108001
    [24] Araucaria nemorosa
    Last Modified in 10/17/19
    10434108001
    [25] Araucaria rulei
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    [26] Araucaria schmidii
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    [27] Araucaria scopulorum
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    10434108001
    [28] Araucaria subulata
    Last Modified in 10/17/19
    10434108001
    [29] Araucaria bidwillii
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    10434108001
    [30] Araucaria hunsteinii
    Last Modified in 10/17/19
    10434108001
    [31] Araucaria angustifolia
    Last Modified in 10/17/19
    10424108001
    [32] Araucaria araucana
    Last Modified in 10/17/19
    10424108001
    [33] Acmopyle pancheri
    Last Modified in 10/17/19
    7484705001
    [34] Acmopyle sahniana
    Last Modified in 10/17/19
    12424205001
    [35] Afrocarpus falcatus
    Last Modified in 10/17/19
    12434205001
    [36] Afrocarpus gracilior
    Last Modified in 10/17/19
    12454205001
    [37] Afrocarpus mannii
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    13434204001
    [38] Dacrycarpus cinctus
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    5515004001
    [39] Dacrycarpus compactus
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    6494904001
    [40] Dacrycarpus cumingii
    Last Modified in 10/17/19
    6514904001
    [41] Dacrycarpus dacrydioides
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    6504904001
    [42] Dacrycarpus expansus
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    7494804001
    [43] Dacrycarpus vieillardii
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    9464604001
    [44] Dacrydium araucarioides
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    11434305001
    [45] Dacrydium balansae
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    11444305001
    [46] Dacrydium beccarii
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    12424205001
    [47] Dacrydium comosum
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    16383805001
    [48] Dacrydium cupressinum
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    15393905001
    [49] Falcatifolium papuanum
    Last Modified in 10/17/19
    6525003001
    [50] Falcatifolium taxoides
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    6525003001
    [51] Halocarpus bidwillii
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    8484605001
    [52] Halocarpus biformis
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    9474505001
    [53] Halocarpus kirkii
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    [54] Lagarostrobos franklinii
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    5524905001
    [55] Lepidothamnus fonkii
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    11494503001
    [56] Lepidothamnus intermedius
    Last Modified in 10/17/19
    12464403001
    [57] Lepidothamnus laxifolius
    Last Modified in 10/17/19
    12454304001
    [58] Manoao colensoi
    Last Modified in 10/17/19
    11444305001
    [59] Microcachrys tetragona
    Last Modified in 10/17/19
    7484705001
    [60] Nageia nagi
    Last Modified in 10/17/19
    10474405001
    [61] Nageia wallichiana
    Last Modified in 10/17/19
    10484603001
    [62] Nageia formosensis
    Last Modified in 10/17/19
    18403803001
    [63] Parasitaxus ustus
    Last Modified in 10/17/19
    15414004001
    [64] Pherosphaera fitzgeraldii
    Last Modified in 10/17/19
    13424105001
    [65] Pherosphaera hookeriana
    Last Modified in 10/17/19
    17383705001
    [66] Phyllocladus aspleniifolius
    Last Modified in 10/17/19
    113535013001
    [67] Phyllocladus hypophyllus
    Last Modified in 10/17/19
    133433013001
    [68] Phyllocladus toatoa
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    133333013001
    [69] Phyllocladus trichomanoides
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    133433013001
    [70] Eophyllocladus sudamericanus
    Last Modified in 10/17/19
    46111102001
    [71] Podocarpus archboldii
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    18363605001
    [72] Podocarpus insularis
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    20353405001
    [73] Podocarpus dispermus
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    18363605001
    [74] Podocarpus gnidioides
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    20353405001
    [75] Podocarpus nubigenus
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    17373705001
    [76] Podocarpus parlatorei
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    18363605001
    [77] Podocarpus salignus
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    13424204001
    [78] Prumnopitys andina
    Last Modified in 10/17/19
    6504706001
    [79] Prumnopitys ferruginoides
    Last Modified in 10/17/19
    8474506001
    [80] Prumnopitys montana
    Last Modified in 10/17/19
    8494506001
    [81] Prumnopitys taxifolia
    Last Modified in 10/17/19
    9464406001
    [82] Retrophyllum comptonii
    Last Modified in 10/17/19
    3535105001
    [83] Retrophyllum minus
    Last Modified in 10/17/19
    3525105001
    [84] Retrophyllum rospigliosii
    Last Modified in 10/17/19
    7484804001
    [85] Saxegothaea conspicua
    Last Modified in 10/17/19
    3494907001
    [86] Sundacarpus amarus
    Last Modified in 10/17/19
    5494608001


    Project views

    type number of views Individual items viewed (where applicable)
    Total project views266
    Project overview53
    Matrix views40Matrix landing page (30 views); Morphological matrix of Podocarpaceae including the fossil species Huncocladus laubenfelsii (10 views);
    Taxon list84
    Specimen list27
    Media views38Media search (33 views); M681533 (5 views);
    Views for media list14
    Bibliography10




    Project downloads

    type number of downloads Individual items downloaded (where applicable)
    Total downloads from project4
    Project downloads2
    Matrix downloads2Morphological matrix of Podocarpaceae including the fossil species Huncocladus laubenfelsii (2 downloads);