Project 5273: M. G. London, K. Shimada. 2020. A new pachyrhizodontid fish (Actinopterygii: Teleostei) from the Tarrant Formation (Cenomanian) of the Upper Cretaceous Eagle Ford Group in Texas, USA. Cretaceous Research. 113:104490.
Specimen: † Pholidophorus (unvouchered)
View: whole specimen (fossil)

Abstract

SMU 76938 is a nearly complete skeleton of a fossil bony fish housed in Southern Methodist University in Dallas, Texas, USA. It was collected from the Tarrant Formation (middle Cenomanian) of the Upper Cretaceous Eagle Ford Group in Tarrant County, Texas, an area where it was near the East Texas Embayment of the Western Interior Seaway during the Late Cretaceous. The fossil fish has a fusiform body and measures about 1.2 m in total length. Our phylogenetic analysis indicates that it is a pachyrhizodontid crossognathiform fish, and comparisons with previously reported pachyrhizodontids suggest that the fossil fish belongs to a new species of a new genus. With a fusiform body, a large symmetrical caudal fin, and a mouth with numerous small conical teeth suited for grasping, the new taxon is interpreted to be a fast swimming, open-ocean predator that likely pursued smaller squid, crustaceans, and other fishes. Vertebral growth rings suggest that the individual was possibly about 14 years old at the time of its death, and our vertebra-based theoretical growth model indicates that the species could have reached up to about 1.8 m TL and lived up to 37 years old in age.


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Article DOI: 10.1016/j.cretres.2020.104490

Project DOI: 10.7934/P5273, http://dx.doi.org/10.7934/P5273
This project containsMatrices
  • 7 Media
  • 1 Matrix
  • 1 Document
  • 43 Taxa
  • 7 Specimens
  • 142 Characters
Total size of project's media files: 23.82M

Download Project SDD File
Total scored cells: 5427
Total media associated with cells: 0
Total labels associated with cell media: 0
Characters
Total characters: 142
Total characters with associated media: 0
Total characters with media with labels: 0
Total character states: 329
Total character states with associated media: 0
Total character states with media with labels:0
Total unordered/ordered characters:142/0
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MorphoBank Project 5273

    Authors' Institutions

    • Field Museum of Natural History

    • Fort Hays State University

    • DePaul University



    Members

    member name taxa specimens media chars character
    media
    labels
    cell scorings
    (scored, NPA, "-")
    cell
    medialabels
    rules
    Shreya Jariwala
    Project Administrator
    4377142005427
    (5388, 0, 39)
    000


    Taxonomic Overview for Matrix 'M29854' (43 Taxa)

    taxon unscored
    cells
    scored
    cells
    no cell
    support
    NPA
    cells
    "-" cellscell images labels on
    cell images
    member
    access
    [1] † Pholidophorus
    Taxon name last Modified on 05/30/24
    014214200001
    [2] † Apsopelix
    Taxon name last Modified on 05/30/24
    1812412400001
    [3] † Allothrissops
    Taxon name last Modified on 05/30/24
    613613600001
    [4] † Anaethalion angustus
    Taxon name last Modified on 05/30/24
    2311911900001
    [5] † Anaethalion zapporum
    Taxon name last Modified on 05/30/24
    2811411400001
    [6] † Ascalabos
    Taxon name last Modified on 05/30/24
    2012212200001
    [7] † Bavarichthys
    Taxon name last Modified on 05/30/24
    3111011001001
    [8] Brycon
    Taxon name last Modified on 05/30/24
    913113102001
    [9] Chanos
    Taxon name last Modified on 05/30/24
    213813802001
    [10] † Chongichthys
    Taxon name last Modified on 05/30/24
    65777700001
    [11] † Crossognathus
    Taxon name last Modified on 05/30/24
    2212012000001
    [12] † Denticeps
    Taxon name last Modified on 05/30/24
    313713702001
    [13] † Diplomystus
    Taxon name last Modified on 05/30/24
    1113113100001
    [14] † Domeykos
    Taxon name last Modified on 05/30/24
    3211011000001
    [15] Engraulis
    Taxon name last Modified on 05/30/24
    513513502001
    [16] Elops
    Taxon name last Modified on 05/30/24
    014214200001
    [17] † Erichalcis
    Taxon name last Modified on 05/30/24
    2511611601001
    [18] Esox
    Taxon name last Modified on 05/30/24
    213713703001
    [19] † Gordichthys
    Taxon name last Modified on 05/30/24
    2211911901001
    [20] † Goulmimichthys
    Taxon name last Modified on 05/30/24
    3810210202001
    [21] Hiodon
    Taxon name last Modified on 05/30/24
    113813803001
    [22] Heterotis
    Taxon name last Modified on 05/30/24
    513513502001
    [23] † Humbertia
    Taxon name last Modified on 05/30/24
    613513501001
    [24] † Leptolepis
    Taxon name last Modified on 05/30/24
    214014000001
    [25] † Leptolepides haerteisi
    Taxon name last Modified on 05/30/24
    1712512500001
    [26] † Leptolepides sprattiformis
    Taxon name last Modified on 05/30/24
    813413400001
    [27] † Luisichthys
    Taxon name last Modified on 05/30/24
    3211011000001
    [28] † Lycoptera
    Taxon name last Modified on 05/30/24
    1512512502001
    [29] Megalops
    Taxon name last Modified on 05/30/24
    114114100001
    [30] † Notelops
    Taxon name last Modified on 05/30/24
    1113013001001
    [31] Oncorhynchus
    Taxon name last Modified on 05/30/24
    114014001001
    [32] Opsariichthys
    Taxon name last Modified on 05/30/24
    014014002001
    [33] † Orthogonikleithrus hoelli
    Taxon name last Modified on 05/30/24
    1712212203001
    [34] † Pachythrissops
    Taxon name last Modified on 05/30/24
    2811411400001
    [35] † Protoclupea
    Taxon name last Modified on 05/30/24
    2911311300001
    [36] † Rhacolepis
    Taxon name last Modified on 05/30/24
    1312812801001
    [37] † Santanaclupea
    Taxon name last Modified on 05/30/24
    3310710702001
    [38] † Tharsis
    Taxon name last Modified on 05/30/24
    214014000001
    [39] † Thrissops
    Taxon name last Modified on 05/30/24
    1412812800001
    [40] Thymallus
    Taxon name last Modified on 05/30/24
    014114101001
    [41] Umbra
    Taxon name last Modified on 05/30/24
    713213203001
    [42] † Varasichthys
    Taxon name last Modified on 05/30/24
    1312912900001
    [43] † Polcynichthys lloydhilli
    Taxon name last Modified on 05/30/24
    62797901001


    Project downloads

    type number of downloads Individual items downloaded (where applicable)
    Total downloads from project1
    Matrix downloads1London and Shimada 2020 (1 download);