Project 1023: Schram, F.R., Dixon, C.J. 2004. Decapod phylogeny: addition of fossil evidence to a robust morphological cladistic data set. Bulletin of the Mizunami Fossil Museum. 31:1-19.
Specimen: †Mecochirus (unvouchered)
View: lateral

Abstract

Incorporating fossils into schemes for the phylogenetic relationships of decapod crustaceans has been difficult because of the generally incomplete nature of the fossil record. Now a fairly robust data matrix of characters and taxa relevant to the phylogeny of decapods has been derived from consideration of living forms. We chose several taxa from the fossil record to test whether the robustness of the matrix can withstand insertion of fossils with various degrees of incomplete information. The essential structure of the original tree survives, and reasonable hypotheses about the affinities of selected fossils emerge. Sometimes we detected singular positions on our trees that indicate a high certainty about where certain taxa fit, while under other conditions there are alternative positions to choose from. Definitive answers are not to be expected. Rather, what is important is the demonstration of the usefulness of a method that can entertain and specifically document multiple alternative hypotheses.


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Project DOI: 10.7934/P1023, http://dx.doi.org/10.7934/P1023
This project containsMatrices
  • 26 Media
  • 1 Matrix
  • 50 Taxa
  • 27 Specimens
  • 44 Characters
Total size of project's media files: 18 MB

Download Project SDD File
Total scored cells: 2157
Total media associated with cells: 0
Total labels associated with cell media: 0
Characters
Total characters: 44
Total characters with associated media: 0
Total characters with media with labels: 0
Total character states: 134
Total character states with associated media: 0
Total character states with media with labels:0
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MorphoBank Project 1023


    Members

    member name taxa specimens media chars character
    media
    labels
    cell scorings
    (scored, NPA, "-")
    cell
    medialabels
    rules
    Jo Wolfe
    Project Administrator
    Last logged in 02/26/14
    50272644002157
    (2131, 0, 26)
    000
    Frederick Schram
    Full membership
    Last logged in Never
    0000000
    (0, 0, 0)
    000


    Taxonomic Overview for Matrix 'M2522' (50 Taxa)

    taxon unscored
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    "-" cellscell images labels on
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    [1] Euphausia superba
    Last Modified in 02/25/14
    0444400002
    [2] Metapenaeus monoceros
    Last Modified in 02/25/14
    0444400002
    [3] Sicyonia cristata
    Last Modified in 02/25/14
    0444400002
    [4] Atyoida pilipes
    Last Modified in 02/25/14
    0444400002
    [5] Leander tenuicornis
    Last Modified in 02/25/14
    0444400002
    [6] Macrobrachium lar
    Last Modified in 02/25/14
    0444400002
    [7] Crangon crangon
    Last Modified in 02/25/14
    0444400002
    [8] Alpheus cylindricus
    Last Modified in 02/25/14
    0444400002
    [9] Stenopus hispidus
    Last Modified in 02/25/14
    0444400002
    [10] Polycheles typhlops
    Last Modified in 02/25/14
    0434301002
    [11] Polycheles galil
    Last Modified in 02/25/14
    0434301002
    [12] Thaumastocheles dochmiodon
    Last Modified in 02/25/14
    0434301002
    [13] Enoplometopus occidentalis
    Last Modified in 02/25/14
    0444400002
    [14] Homarus gammarus
    Last Modified in 02/25/14
    0444400002
    [15] Astacus astacus
    Last Modified in 02/25/14
    0444400002
    [16] Austropotamobius pallipes
    Last Modified in 02/25/14
    0444400002
    [17] Cambarus bartoni
    Last Modified in 02/25/14
    0444400002
    [18] Neoglyphea inopinata
    Last Modified in 02/25/14
    0444400002
    [19] Jaxea nocturna
    Last Modified in 02/25/14
    1434300002
    [20] Thalassina anomala
    Last Modified in 02/25/14
    0444400002
    [21] Calocaris macandreae
    Last Modified in 02/25/14
    0434301002
    [22] Eiconaxius acutifrons
    Last Modified in 02/25/14
    1434300002
    [23] Callianidea typa
    Last Modified in 02/25/14
    0434301002
    [24] Callianassa setimana
    Last Modified in 02/25/14
    0444400002
    [25] Callianassa tyrrhena
    Last Modified in 02/25/14
    0444400002
    [26] Upogebia pusilla
    Last Modified in 02/25/14
    1434300002
    [27] Upogebia deltaura
    Last Modified in 02/25/14
    0444400002
    [28] Palinurellus gundlachi
    Last Modified in 02/25/14
    1434300002
    [29] Scyllarus arctus
    Last Modified in 02/25/14
    1434300002
    [30] Aegla sp
    Last Modified in 02/25/14
    0444400002
    [31] Galathea squamifera
    Last Modified in 02/25/14
    0444400002
    [32] Agononida incerta
    Last Modified in 02/25/14
    0444400002
    [33] Hippa pacifica
    Last Modified in 02/25/14
    0444400002
    [34] Emerita portoricensis
    Last Modified in 02/25/14
    2424200002
    [35] Pylocheles sp
    Last Modified in 02/25/14
    0444400002
    [36] Coenobita brevimanus
    Last Modified in 02/25/14
    0393905002
    [37] Pagurus bernhardus
    Last Modified in 02/25/14
    0393905002
    [38] Calcinus tibicen
    Last Modified in 02/25/14
    0393905002
    [39] Homola barbata
    Last Modified in 02/25/14
    0434301002
    [40] Lauridromia dehaani
    Last Modified in 02/25/14
    0434301002
    [41] Maja squinado
    Last Modified in 02/25/14
    0434301002
    [42] Carcinus maenas
    Last Modified in 02/25/14
    0424202002
    [43] Ocypode sp
    Last Modified in 02/25/14
    1424201002
    [44] †Palaeopalaemon newberryi
    Last Modified in 02/25/14
    9353500002
    [45] †Glaessnericaris machrochela
    Last Modified in 02/25/14
    7373700002
    [46] †Eryon
    Last Modified in 02/25/14
    0444400002
    [47] †Eryma
    Last Modified in 02/25/14
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    [48] †Glyphea
    Last Modified in 02/25/14
    5393900002
    [49] †Mecochirus
    Last Modified in 02/25/14
    8363600002
    [50] †Pemphix sueri
    Last Modified in 02/25/14
    6383800002


    Project views

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    Project overview223
    Matrix views150Matrix landing page (133 views); Decapod phylogeny: addition of fossil evidence to a robust morphological cladistic data set (17 views);
    Media views1083Media search (247 views); M326388 (41 views); M326414 (28 views); M326412 (36 views); M326391 (32 views); M326409 (31 views); M326402 (31 views); M326408 (33 views); M326397 (34 views); M326390 (32 views); M326395 (31 views); M326406 (31 views); M326398 (36 views); M326401 (29 views); M326394 (37 views); M326389 (32 views); M326413 (33 views); M326393 (33 views); M326405 (31 views); M326392 (31 views); M326396 (35 views); M326403 (37 views); M326410 (26 views); M326399 (29 views); M326404 (29 views); M326411 (29 views); M326407 (29 views);
    Specimen list1027
    Taxon list612
    Views for media list203




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    type number of downloads Individual items downloaded (where applicable)
    Total downloads from project2
    Media downloads1M326412 (1 download);
    Matrix downloads1Decapod phylogeny: addition of fossil evidence to a robust morphological cladistic data set (1 download);