Project 674: S. P. Zack. 2011. New Species of the Rare Early Eocene Creodont Galecyon and the Radiation of Early Hyaenodontidae. Journal of Paleontology. 85 (2):315-336.
Specimen: † Galecyon chronius (USNM:511004)

Abstract

Galecyon is one of the first appearing hyaenodontid creodonts, as well as one of the most poorly known. New specimens greatly improve our understanding of the morphology of this early Eocene genus, thereby enhance knowledge of the earliest radiation of Hyaenodontidae, and include the first associated upper dental remains, as well as fragmentary cranial remains. The new records substantially expand the stratigraphic range of the genus and allow recognition of two new species. The first, Galecyon peregrinus n. sp., is a small, early species that includes the first records of Galecyon from the earliest Eocene Wa-0 interval. The second, Galecyon chronius n. sp., is a large, terminal species, represented by numerous specimens that extend the range of the genus into the late Wasatchian. The type species, G. mordax, is restricted to specimens that are intermediate in size and stratigraphic position. Phylogenetic analysis of early hyaenodontids confirms the monophyly of Galecyon and places it basal to Prolimnocyon, Prototomus, and Pyrocyon. Arfia is identified as the earliest diverging hyaenodontid sampled, contrasting with prior support for a more crownward position. Prototomus martis is more closely allied to Pyrocyon than to other species of Prototomus. The three North American species of Galecyon form a probable anagenetic lineage.


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Project DOI: 10.7934/P674, http://dx.doi.org/10.7934/P674
This project containsMatrices
  • 1 Media
  • 1 Matrix
  • 2 Documents
  • 18 Taxa
  • 1 Specimen
  • 54 Characters
Total size of project's media files: 1 MB

Download Project SDD File
Total scored cells: 805
Total media associated with cells: 0
Total labels associated with cell media: 0
Characters
Total characters: 54
Total characters with associated media: 0
Total characters with media with labels: 0
Total character states: 119
Total character states with associated media: 0
Total character states with media with labels:0
Total unordered/ordered characters:54/0
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MorphoBank Project 674

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    Maureen Admin
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    Taxonomic Overview for Matrix 'M1545' (18 Taxa)

    taxon unscored
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    [1] † Prodiacodon spp.
    Last Modified in 12/05/13
    3504902003
    [2] † Cimolestes magnus
    Last Modified in 12/05/13
    3515100003
    [3] † Arfia gingerichi
    Last Modified in 12/05/13
    9444401003
    [4] † Arfia junnei
    Last Modified in 12/05/13
    20343400003
    [5] † Arfia shoshoniensis and opisthotoma
    Last Modified in 12/05/13
    1605300003
    [6] † Prototomus minimus
    Last Modified in 12/05/13
    8464501003
    [7] † Prototomus deimos
    Last Modified in 12/05/13
    28262600003
    [8] † Prototomus phobos
    Last Modified in 12/05/13
    18363600003
    [9] † Prototomus secundarius
    Last Modified in 12/05/13
    3515100003
    [10] † Prototomus martis
    Last Modified in 12/05/13
    14434000003
    [11] † Pyrocyon strenuus
    Last Modified in 12/05/13
    3515100003
    [12] † Pyrocyon dioctetus
    Last Modified in 12/05/13
    22323200003
    [13] † Prolimnocyon haematus
    Last Modified in 12/05/13
    4535000003
    [14] † Prolimnocyon atavus
    Last Modified in 12/05/13
    1555300003
    [15] † Galecyon morloi
    Last Modified in 12/05/13
    20333301003
    [16] † Galecyon peregrinus
    Last Modified in 12/05/13
    25332900003
    [17] † Galecyon mordax
    Last Modified in 12/05/13
    12454200003
    [18] † Galecyon chronius
    Last Modified in 12/05/13
    1575300003


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    Documents list1203
    Matrix views1469Matrix landing page (1297 views); Galecyon dental matrix (172 views);
    Specimen list1765
    Taxon list3164
    Bibliography695




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    Total downloads from project185
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    Matrix downloads4Galecyon dental matrix (4 downloads);