Project 2804: J.D. Beech, J.C. Lamsdell. 2021. Phylogeny, disparity, and mass extinction response in the trilobite order Harpetida. Papers in Palaeontology. Online:1-21.
Specimen: † Bohemoharpes ungula Ebach and McNamara, 2002 (YPM/IP:559330)
View: dorsal thorax

Abstract

The trilobite order Harpetida has long been easily recognized but many unanswered evolutionary questions about the group remain. This work explores the phylogenetic relationships within Harpetida, and studies the harpetid response to the Late Ordovician mass extinction to better understand the relationship between extinction events and disparity. A discrete morphological character matrix was assembled from published descriptions and refined through first-hand observations. This matrix is the first attempt of its kind to characterize the overall morphology of Harpetida, rather than focusing on individual harpetid genera. Phylogenetic analyses under both maximum parsimony and Bayesian inference optimality criteria retrieve tree topologies that support harpetid monophyly but throw doubt onto previous hypotheses of the internal relationships of the order. Harpetid disparity proves remarkably stable over time. A modest peak in the Ordovician is followed by a slow decline throughout the Silurian and Devonian. After the Ordovician, harpetids demonstrate little or no ability to colonize new areas of morphospace. This may represent a fundamental failure to recover, where the lasting impacts of Late Ordovician mass extinction continue to suppress morphological innovation. These findings demonstrate that mass extinction events may have complex impacts that play out over many millions of years.


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Article DOI: https://doi.org/10.1002/spp2.1399

Project DOI: 10.7934/P2804, http://dx.doi.org/10.7934/P2804
This project containsMatrices
  • 45 Media
  • 3 Matrices
  • 2 Documents
  • 190 Taxa
  • 39 Specimens
  • 108 Characters
Total size of project's media files: 257.77M

Download Project SDD File
Total scored cells: 13218
Total media associated with cells: 0
Total labels associated with cell media: 0
Characters
Total characters: 255
Total characters with associated media: 0
Total characters with media with labels: 0
Total character states: 239
Total character states with associated media: 0
Total character states with media with labels:0
Total unordered/ordered characters:255/0
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MorphoBank Project 2804

    This research
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    Authors' Institutions

    • West Virginia University



    Members

    member name taxa specimens media media
    notes
    chars character
    comms
       
    notes  media
    labels
    cell scorings
    (scored, NPA, "-")
    cell
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    notes  medialabels
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    James Beech
    Project Administrator
    188384542440132008066
    (7135, 5, 926)
    01270040
    James Lamsdell
    Full membership
    21001106005152
    (4263, 0, 889)
    082000


    Taxonomic Overview for Matrix 'M24940' (47 Taxa)

    taxon unscored
    cells
    scored
    cells
    no cell
    support
    NPA
    cells
    "-" cellscell images labels on
    cell images
    member
    access
    [1] † Eoredlichia intermediata
    Last Modified in 06/28/19
    05655020002
    [2] † Baikadamaspis jikdongensis
    Last Modified in 06/28/19
    35352020002
    [3] † Bohemoharpes naumanni
    Last Modified in 06/28/19
    7636206002
    [4] † Bohemoharpes ungula
    Last Modified in 06/28/19
    2666608002
    [5] † Bowmania lassieae
    Last Modified in 06/28/19
    35353020002
    [6] † Brachyhipposiderus secundus
    Last Modified in 06/28/19
    8636115002
    [7] † Conococheaguea ovata
    Last Modified in 06/28/19
    114645019002
    [8] † Dolichoharpes dentoni
    Last Modified in 06/28/19
    1717004002
    [9] † Dubhglasina parvula
    Last Modified in 06/28/19
    8595809002
    [10] † Entomaspis radiatus
    Last Modified in 06/28/19
    36160012002
    [11] † Eoharpes benignensis
    Last Modified in 06/28/19
    1706405002
    [12] † Eoharpes primus
    Last Modified in 06/28/19
    2696905002
    [13] † Eskoharpes boltoni
    Last Modified in 06/28/19
    8625906002
    [14] † Eskoharpes guthae
    Last Modified in 06/28/19
    12585806002
    [15] † Eskoharpes palanasus
    Last Modified in 06/28/19
    2686606002
    [16] † Eskoharpes wandjina
    Last Modified in 06/28/19
    9616106002
    [17] † Globoharpes friendi
    Last Modified in 06/28/19
    8625906002
    [18] † Globoharpes teicherti
    Last Modified in 06/28/19
    8626106002
    [19] † Harpes gracilis
    Last Modified in 06/28/19
    32424002002
    [20] † Harpes macrocephalus
    Last Modified in 10/31/19
    0716605002
    [21] † Harpes neogracilis
    Last Modified in 06/28/19
    11595906002
    [22] † Harpes whidbournei
    Last Modified in 06/28/19
    10616005002
    [23] † Harpides grimmi
    Last Modified in 06/28/19
    54444225002
    [24] † Helioharpes perradiatus
    Last Modified in 06/28/19
    2686806002
    [25] † Helioharpes radians
    Last Modified in 06/28/19
    12585706002
    [26] † Heterocaryon vargum
    Last Modified in 06/28/19
    55151020002
    [27] † Hibbertia balclatchiensis
    Last Modified in 06/28/19
    9626205002
    [28] † Hibbertia wegelini
    Last Modified in 06/28/19
    9616106002
    [29] † Kielania dorbignyana
    Last Modified in 06/28/19
    11575708002
    [30] † Lioharpes montagnei
    Last Modified in 06/28/19
    12565108002
    [31] † Lioharpes venulosus
    Last Modified in 06/28/19
    8606008002
    [32] † Loganopeltis depressa
    Last Modified in 06/28/19
    54646025002
    [33] † Loganopeltoides zenkeri
    Last Modified in 06/28/19
    64747023002
    [34] † Notchpeakia milleri
    Last Modified in 01/22/19
    25454020002
    [35] † Scotoharpes consuetus
    Last Modified in 06/28/19
    10595907002
    [36] † Scotoharpes domina
    Last Modified in 06/28/19
    11595906002
    [37] † Scotoharpes latior
    Last Modified in 06/28/19
    11585507002
    [38] † Scotoharpes loma
    Last Modified in 06/28/19
    8626106002
    [39] † Scotoharpes raaschi
    Last Modified in 06/28/19
    8626106002
    [40] † Scotoharpes spasskii
    Last Modified in 06/28/19
    8615807002
    [41] † Scotoharpes tatouyangensis
    Last Modified in 06/28/19
    16535016002
    [42] † Cedaria minor
    Last Modified in 06/28/19
    05555021002
    [43] † Coosina kindlei
    Last Modified in 06/28/19
    104746019002
    [44] † Crepicephalus iowensis
    Last Modified in 06/28/19
    94545022002
    [45] † Modocia whiteleyi
    Last Modified in 06/28/19
    15454021002
    [46] † Ptychoparia striata
    Last Modified in 06/28/19
    15454120002
    [47] † Tricrepicephalus coria
    Last Modified in 06/28/19
    44948023002


    Taxonomic Overview for Matrix 'M25898' (53 Taxa)

    taxon unscored
    cells
    scored
    cells
    no cell
    support
    NPA
    cells
    "-" cellscell images labels on
    cell images
    member
    access
    [1] † Eoredlichia intermediata
    Last Modified in 06/28/19
    97371022002
    [2] † Baikadamaspis jikdongensis
    Last Modified in 06/28/19
    147067020002
    [3] † Bohemoharpes naumanni
    Last Modified in 06/28/19
    345755012002
    [4] † Bohemoharpes ungula
    Last Modified in 06/28/19
    78682012002
    [5] † Bowmania lassieae
    Last Modified in 06/28/19
    464545012002
    [6] † Brachyhipposiderus secundus
    Last Modified in 06/28/19
    474645010002
    [7] † Chencunia tripleura
    Last Modified in 02/22/19
    967700002
    [8] † Conococheaguea ovata
    Last Modified in 06/28/19
    255554023002
    [9] † Dolichoharpes dentoni
    Last Modified in 06/28/19
    21787704002
    [10] † Dubhglasina parvula
    Last Modified in 06/28/19
    524140011002
    [11] † Entomaspis radiatus
    Last Modified in 06/28/19
    206462020002
    [12] † Eoharpes antiquatus
    Last Modified in 02/22/19
    21766607002
    [13] † Eoharpes benignensis
    Last Modified in 06/28/19
    247065010002
    [14] † Eoharpes primus
    Last Modified in 06/28/19
    38565609002
    [15] † Eskoharpes boltoni
    Last Modified in 06/28/19
    28716407002
    [16] † Eskoharpes guthae
    Last Modified in 06/28/19
    35605809002
    [17] † Eskoharpes palanasus
    Last Modified in 06/28/19
    19787309002
    [18] † Eskoharpes wandjina
    Last Modified in 06/28/19
    226260021002
    [19] † Globoharpes friendi
    Last Modified in 06/28/19
    27676509002
    [20] † Globoharpes teicherti
    Last Modified in 06/28/19
    30696606002
    [21] † Harpes gracilis
    Last Modified in 06/28/19
    563229015002
    [22] † Harpes macrocephalus
    Last Modified in 10/31/19
    26716406002
    [23] † Harpes neogracilis
    Last Modified in 06/28/19
    266159018002
    [24] † Harpes whidbournei
    Last Modified in 06/28/19
    275756019002
    [25] † Harpides grimmi
    Last Modified in 06/28/19
    72282703002
    [26] † Helioharpes perradiatus
    Last Modified in 06/28/19
    286161014002
    [27] † Helioharpes radians
    Last Modified in 06/28/19
    295655018002
    [28] † Heterocaryon vargum
    Last Modified in 06/28/19
    186260025002
    [29] † Hibbertia balclatchiensis
    Last Modified in 06/28/19
    46515106002
    [30] † Hibbertia ottawaensis
    Last Modified in 02/22/19
    84171702002
    [31] † Hibbertia wegelini
    Last Modified in 06/28/19
    28686807002
    [32] † Kielania dorbignyana
    Last Modified in 06/28/19
    375555011002
    [33] † Lioharpes montagnei
    Last Modified in 06/28/19
    226861013002
    [34] † Lioharpes venulosus
    Last Modified in 06/28/19
    21747408002
    [35] † Loganopeltis depressa
    Last Modified in 06/28/19
    20777508002
    [36] † Loganopeltoides zenkeri
    Last Modified in 06/28/19
    414946015002
    [37] Notchpeakia milleri
    Last Modified in 06/28/19
    157271016002
    [38] † Scotoharpes consuetus
    Last Modified in 06/28/19
    444646013002
    [39] † Scotoharpes domina
    Last Modified in 06/28/19
    395252012002
    [40] † Scotoharpes judex
    Last Modified in 02/22/19
    23727208002
    [41] † Scotoharpes latior
    Last Modified in 06/28/19
    31646009002
    [42] † Scotoharpes loma
    Last Modified in 06/28/19
    22757506002
    [43] † Scotoharpes raaschi
    Last Modified in 06/28/19
    38616004002
    [44] † Scotoharpes singularis
    Last Modified in 02/22/19
    474040016002
    [45] † Scotoharpes spasskii
    Last Modified in 06/28/19
    494441011002
    [46] † Scotoharpes tatouyangensis
    Last Modified in 06/28/19
    43535107002
    [47] † Scotoharpes telleri
    Last Modified in 02/22/19
    44505009002
    [48] † Cedaria minor
    Last Modified in 06/28/19
    146363026002
    [49] † Coosina kindlei
    Last Modified in 06/28/19
    275653021002
    [50] † Crepicephalus iowensis
    Last Modified in 06/28/19
    265352025002
    [51] † Modocia whiteleyi
    Last Modified in 06/28/19
    96464030002
    [52] † Ptychoparia striata
    Last Modified in 06/28/19
    97773018002
    [53] † Tricrepicephalus coria
    Last Modified in 06/28/19
    374442023002


    Taxonomic Overview for Matrix 'M26129' (86 Taxa)

    taxon unscored
    cells
    scored
    cells
    no cell
    support
    NPA
    cells
    "-" cellscell images labels on
    cell images
    member
    access
    [1] † Baikadamaspis jikdongensis
    Last Modified in 06/28/19
    35352020002
    [2] † Bohemoharpes naumanni
    Last Modified in 06/28/19
    7636206002
    [3] † Bohemoharpes ungula
    Last Modified in 06/28/19
    2666608002
    [4] † Bowmania lassieae
    Last Modified in 06/28/19
    35353020002
    [5] † Brachyhipposiderus secundus
    Last Modified in 06/28/19
    9636105002
    [6] † Conococheaguea ovata
    Last Modified in 06/28/19
    114645019002
    [7] † Dolichoharpes dentoni
    Last Modified in 06/28/19
    1717004002
    [8] † Dubhglasina parvula
    Last Modified in 06/28/19
    8595809002
    [9] † Entomaspis radiatus
    Last Modified in 06/28/19
    36160012002
    [10] † Eoharpes benignensis
    Last Modified in 06/28/19
    1706405002
    [11] † Eoharpes primus
    Last Modified in 06/28/19
    2696905002
    [12] † Eskoharpes boltoni
    Last Modified in 06/28/19
    8625906002
    [13] † Eskoharpes guthae
    Last Modified in 06/28/19
    12585806002
    [14] † Eskoharpes palanasus
    Last Modified in 06/28/19
    2686606002
    [15] † Eskoharpes wandjina
    Last Modified in 06/28/19
    9616106002
    [16] † Globoharpes friendi
    Last Modified in 06/28/19
    8625906002
    [17] † Globoharpes teicherti
    Last Modified in 06/28/19
    8626106002
    [18] † Harpes gracilis
    Last Modified in 06/28/19
    32424002002
    [19] † Harpes macrocephalus
    Last Modified in 10/31/19
    0716605002
    [20] † Harpes neogracilis
    Last Modified in 06/28/19
    11595906002
    [21] † Harpes whidbournei
    Last Modified in 06/28/19
    10616005002
    [22] † Harpides grimmi
    Last Modified in 06/28/19
    74444025002
    [23] † Helioharpes perradiatus
    Last Modified in 06/28/19
    2686806002
    [24] † Helioharpes radians
    Last Modified in 06/28/19
    12585706002
    [25] † Heterocaryon vargum
    Last Modified in 06/28/19
    55151020002
    [26] † Hibbertia balclatchiensis
    Last Modified in 06/28/19
    9626205002
    [27] † Hibbertia wegelini
    Last Modified in 06/28/19
    9616106002
    [28] † Kielania dorbignyana
    Last Modified in 06/28/19
    11575708002
    [29] † Lioharpes montagnei
    Last Modified in 06/28/19
    12565108002
    [30] † Lioharpes venulosus
    Last Modified in 06/28/19
    8606008002
    [31] † Loganopeltis depressa
    Last Modified in 06/28/19
    54646025002
    [32] † Loganopeltoides zenkeri
    Last Modified in 06/28/19
    64747023002
    [33] Notchpeakia milleri
    Last Modified in 06/28/19
    25454020002
    [34] † Scotoharpes consuetus
    Last Modified in 06/28/19
    10595907002
    [35] † Scotoharpes domina
    Last Modified in 06/28/19
    11595906002
    [36] † Scotoharpes latior
    Last Modified in 06/28/19
    11585507002
    [37] † Scotoharpes loma
    Last Modified in 06/28/19
    8626106002
    [38] † Scotoharpes raaschi
    Last Modified in 06/28/19
    8626106002
    [39] † Scotoharpes spasskii
    Last Modified in 06/28/19
    8615807002
    [40] † Scotoharpes tatouyangensis
    Last Modified in 06/28/19
    17535006002
    [41] † Cedaria minor
    Last Modified in 06/28/19
    05555021002
    [42] † Coosina kindlei
    Last Modified in 06/28/19
    104746019002
    [43] † Crepicephalus iowensis
    Last Modified in 06/28/19
    94545022002
    [44] † Modocia whiteleyi
    Last Modified in 06/28/19
    15454021002
    [45] † Ptychoparia striata
    Last Modified in 06/28/19
    25454020002
    [46] † Tricrepicephalus coria
    Last Modified in 06/28/19
    44948023002
    [47] † Ancestor_1
    Last Modified in 06/28/19
    0686808002
    [48] † Ancestor_2
    Last Modified in 06/28/19
    0717105002
    [49] † Ancestor_3
    Last Modified in 06/28/19
    0707006002
    [50] Ancestor_4
    Last Modified in 06/28/19
    0727204002
    [51] † Ancestor_5
    Last Modified in 06/28/19
    0727204002
    [52] † Ancestor_6
    Last Modified in 06/28/19
    0717105002
    [53] † Ancestor_7
    Last Modified in 06/28/19
    0737303002
    [54] † Ancestor_8
    Last Modified in 06/28/19
    0747402002
    [55] † Ancestor_9
    Last Modified in 06/28/19
    0737303002
    [56] † Ancestor_10
    Last Modified in 06/28/19
    0747402002
    [57] † Ancestor_11
    Last Modified in 06/28/19
    0737303002
    [58] † Ancestor_12
    Last Modified in 06/28/19
    0747402002
    [59] † Ancestor_13
    Last Modified in 06/28/19
    0737303002
    [60] † Ancestor_14
    Last Modified in 06/28/19
    0747402002
    [61] † Ancestor_15
    Last Modified in 06/28/19
    0737303002
    [62] † Ancestor_16
    Last Modified in 06/28/19
    0737303002
    [63] † Ancestor_17
    Last Modified in 06/28/19
    0747402002
    [64] † Ancestor_18
    Last Modified in 06/28/19
    0737303002
    [65] † Ancestor_19
    Last Modified in 06/28/19
    0747402002
    [66] † Ancestor_20
    Last Modified in 06/28/19
    0757501002
    [67] † Ancestor_21
    Last Modified in 06/28/19
    0757501002
    [68] † Ancestor_22
    Last Modified in 06/28/19
    0757501002
    [69] † Ancestor_23
    Last Modified in 06/28/19
    0757501002
    [70] † Ancestor_24
    Last Modified in 06/28/19
    0757501002
    [71] † Ancestor_25
    Last Modified in 06/28/19
    0737303002
    [72] † Ancestor_26
    Last Modified in 06/28/19
    0747402002
    [73] † Ancestor_27
    Last Modified in 06/28/19
    0757501002
    [74] † Ancestor_28
    Last Modified in 06/28/19
    0757501002
    [75] † Ancestor_29
    Last Modified in 06/28/19
    0757501002
    [76] † Ancestor_30
    Last Modified in 06/28/19
    0767600002
    [77] † Ancestor_31
    Last Modified in 06/28/19
    0767600002
    [78] † Ancestor_32
    Last Modified in 06/28/19
    0767600002
    [79] † Ancestor_33
    Last Modified in 06/28/19
    0727204002
    [80] † Ancestor_34
    Last Modified in 06/28/19
    0727204002
    [81] † Ancestor_35
    Last Modified in 06/28/19
    0727204002
    [82] † Ancestor_36
    Last Modified in 06/28/19
    0727204002
    [83] † Ancestor_37
    Last Modified in 06/28/19
    1727203002
    [84] † Ancestor_38
    Last Modified in 06/28/19
    0737303002
    [85] † Ancestor_39
    Last Modified in 06/28/19
    1717104002
    [86] † Eoredlichia intermediata
    Last Modified in 06/28/19
    05655020002


    Project views

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    Views for media list114
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    Taxon list606
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    Project downloads

    type number of downloads Individual items downloaded (where applicable)
    Total downloads from project39
    Project downloads25
    Document downloads5Appendix S2. Illustrated character list. (4 downloads); Appendix S1: Characters for Phylogenetic Analysis (1 download);
    Matrix downloads9Appendix S3. Character-taxon matrix. (4 downloads); Character Matrix 1 (4 downloads); Backup matrix (1 download);