Project 5445: T. A. Gates, S. D. Sampson. 2007. A new species of Gryposaurus (Dinosauria: Hadrosauridae) from the late Campanian Kaiparowits Formation, southern Utah, USA. Zoological Journal of the Linnean Society. 151 (2):351-376.
Specimen: † corythosaurus (unvouchered)
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Abstract

A new species of the hadrosaurine hadrosaurid Gryposaurus was discovered in the late Campanian Kaiparowits Formation of southern Utah. Gryposaurus monumentensis, sp. nov. is distinguished from other Gryposaurus species by possessing a more robust skull, enlarged clover-shaped prongs on the predentary oral margin, an anteroposteriorly narrow infratemporal fenestra, and other autapomorphies plausibly associated with feeding adaptations. The derived morphology revealed in G. monumentensis necessitates revision of the generic diagnosis of Gryposaurus, including the addition of synapomorphies that further aid in distinguishing this taxon from Kritosaurus. A revised phylogenetic analysis places Gryposaurus within a monophyletic clade that includes Brachylophosaurus and Maiasaura. Gryposaurus monumentensis represents the most southern example of Gryposaurus, and underlines the remarkable diversification and long duration of this genus. Based on the phylogenetic, geographical, and stratigraphic evidence at hand, Gryposaurus was the most diverse genus within Hadrosaurinae; it also possessed one of the largest geographical and stratigraphic distributions, spanning more than five million years of the Campanian, and ranging from Alberta in the north to Utah (and possibly Texas) in the south.


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Article DOI: 10.1111/j.1096-3642.2007.00349.x

Project DOI: 10.7934/P5445, http://dx.doi.org/10.7934/P5445
This project containsMatrices
  • 1 Media
  • 1 Matrix
  • 1 Document
  • 15 Taxa
  • 1 Specimen
  • 122 Characters
Total size of project's media files: 24.85k

Download Project SDD File
Total scored cells: 1432
Total media associated with cells: 0
Total labels associated with cell media: 0
Characters
Total characters: 122
Total characters with associated media: 0
Total characters with media with labels: 0
Total character states: 311
Total character states with associated media: 0
Total character states with media with labels:0
Total unordered/ordered characters:122/0
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MorphoBank Project 5445
  • Creation Date:
    06 August 2024
  • Publication Date:
    26 August 2024

    Authors' Institutions

    • University of Utah



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    Marisol Manns
    Project Administrator
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    Shreya Jariwala
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    Taxonomic Overview for Matrix 'M30082' (15 Taxa)

    taxon unscored
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    [1] † iguanodon
    Taxon name last Modified on 08/17/24
    212012000002
    [2] † eolambia
    Taxon name last Modified on 08/17/24
    64585800002
    [3] † brachylophosaurus
    Taxon name last Modified on 08/17/24
    112112100002
    [4] † corythosaurus
    Taxon name last Modified on 08/17/24
    811411400002
    [5] † Edmontosaurus spp.
    Taxon name last Modified on 08/17/24
    112112100002
    [6] † Gryposaurus notabilis
    Taxon name last Modified on 08/17/24
    35878700002
    [7] † Gryposaurus incurvimanus
    Taxon name last Modified on 08/17/24
    411811600002
    [8] † Gryposaurus latidens
    Taxon name last Modified on 08/17/24
    62605800002
    [9] † Gryposaurus monumentensis
    Taxon name last Modified on 08/17/24
    1410810700002
    [10] † lophorhothon
    Taxon name last Modified on 08/17/24
    92303000002
    [11] † maiasaura
    Taxon name last Modified on 08/17/24
    411811800002
    [12] † naashoibitosaurus
    Taxon name last Modified on 08/17/24
    70525100002
    [13] † Prosaurolophus spp.
    Taxon name last Modified on 08/17/24
    112111900002
    [14] † Saurolophus spp.
    Taxon name last Modified on 08/17/24
    212012000002
    [15] † telmatosaurus
    Taxon name last Modified on 08/17/24
    38848400002