Project 2451: Mana Dembo, Nicholas J. Matzke, Arne Ø. Mooers, Mark Collard. 2015. Bayesian analysis of a morphological supermatrix sheds light on controversial fossil hominin relationships. Proceedings of the Royal Society B: Biological Sciences. 282 (1812):20150943.
Specimen: † Australopithecus africanus (unvouchered)

Abstract

The phylogenetic relationships of several hominin species remain controversial. Two methodological issues contribute to the uncertainty—use of partial, inconsistent datasets and reliance on phylogenetic methods that are ill-suited to testing competing hypotheses. Here, we report a study designed to overcome these issues. We first compiled a supermatrix of craniodental characters for all widely accepted hominin species. We then took advantage of recently developed Bayesian methods for building trees of serially sampled tips to test among hypotheses that have been put forward in three of the most important current debates in hominin phylogenetics—the relationship between Australopithecus sediba and Homo, the taxonomic status of the Dmanisi hominins, and the place of the so-called hobbit fossils from Flores, Indonesia, in the hominin tree. Based on our results, several published hypotheses can be statistically rejected. For example, the data do not support the claim that Dmanisi hominins and all other early Homo specimens represent a single species, nor that the hobbit fossils are the remains of small-bodied modern humans, one of whom had Down syndrome. More broadly, our study provides a new baseline dataset for future work on hominin phylogeny and illustrates the promise of Bayesian approaches for understanding hominin phylogenetic relationships.


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Article DOI: 10.1098/rspb.2015.0943

Project DOI: 10.7934/P2451, http://dx.doi.org/10.7934/P2451
This project containsMatrices
  • 6 Media
  • 1 Matrix
  • 3 Documents
  • 24 Taxa
  • 6 Specimens
  • 380 Characters
Total size of project's media files: 6 MB

Download Project SDD File
Total scored cells: 4695
Total media associated with cells: 0
Total labels associated with cell media: 0
Characters
Total characters: 380
Total characters with associated media: 0
Total characters with media with labels: 0
Total character states: 926
Total character states with associated media: 0
Total character states with media with labels:0
Total unordered/ordered characters:282/98
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MorphoBank Project 2451

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    member name taxa specimens media chars character
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    MorphoBank Curator
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    Last logged in 09/24/16
    2466380004695
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    Mark Collard
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    Mana Dembo
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    Taxonomic Overview for Matrix 'M24097' (24 Taxa)

    taxon unscored
    cells
    scored
    cells
    no cell
    support
    NPA
    cells
    "-" cellscell images labels on
    cell images
    member
    access
    [1] Gorilla gorilla
    Last Modified in 06/29/16
    9929828100003
    [2] Pan troglodytes
    Last Modified in 06/29/16
    11927926100003
    [3] † Sahelanthropus tchadensis
    Last Modified in 06/29/16
    318656200003
    [4] † Ardipithecus ramidus
    Last Modified in 06/29/16
    348323200003
    [5] † Austraopithecus anamensis
    Last Modified in 06/29/16
    336444400003
    [6] † Australopithecus afarensis
    Last Modified in 06/29/16
    15623122400003
    [7] † Australopithecus africanus
    Last Modified in 06/29/16
    7732830300003
    [8] † Australopithecus garhi
    Last Modified in 06/29/16
    332484800003
    [9] † Kenyanthropus platyops
    Last Modified in 06/29/16
    343403700003
    [10] † Paranthropus robustus
    Last Modified in 06/29/16
    17620820400003
    [11] † Paranthropus boisei
    Last Modified in 06/29/16
    9929528100003
    [12] † Paranthropus aethiopicus
    Last Modified in 06/29/16
    24014414000003
    [13] † Australopithecus sediba
    Last Modified in 06/29/16
    286949400003
    [14] † Homo habilis
    Last Modified in 06/29/16
    6835631200003
    [15] † Homo rudolfensis
    Last Modified in 06/29/16
    15125222900003
    [16] † Homo ergaster
    Last Modified in 06/29/16
    3339634700003
    [17] † Homo erectus
    Last Modified in 06/29/16
    13733024300003
    [18] † Homo heidelbergensis
    Last Modified in 06/29/16
    19426118600003
    [19] † Homo neanderthalensis
    Last Modified in 06/29/16
    20724217300003
    [20] † Homo floresiensis
    Last Modified in 06/29/16
    337434300003
    [21] Homo sapiens
    Last Modified in 06/29/16
    6542231500003
    [22] † Homo antecessor
    Last Modified in 06/29/16
    315666500003
    [23] † Homo erectus (dmanisi)
    Last Modified in 06/30/16
    24915513100003
    [24] † D4500
    Last Modified in 06/29/16
    314666600003


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    Total project views12477
    Project overview1229
    Documents list658
    Media views4000Media search (1775 views); M424412 (362 views); M424416 (341 views); M424414 (377 views); M424417 (424 views); M424415 (386 views); M424413 (335 views);
    Specimen list2450
    Taxon list2958
    Matrix views763Matrix landing page (742 views); Character matrix (21 views);
    Bibliography419




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    type number of downloads Individual items downloaded (where applicable)
    Total downloads from project102
    Project downloads91
    Media downloads1M424414 (1 download);
    Matrix downloads9Character matrix (9 downloads);
    Document downloads1Character matrix (1 download);