Ichthyornis dispar Marsh 1872 (bird)

Aves - Ornithurae

Synonyms: Angelinornis antecessor Wetmore 1962, Colonosaurus mudgei Marsh 1872 [objective synonym], Graculavus agilis Marsh 1873, Graculavus anceps Marsh 1872, Ichthyornis agilis Marsh 1873, Ichthyornis anceps Marsh 1872, Ichthyornis antecessor Wetmore 1962, Ichthyornis validus Marsh 1880, Ichthyornis victor Marsh 1876, Plegadornis anteccessor Wetmore 1962, Plegadornis antecessor Wetmore 1962

Full reference: O. C. Marsh. 1872. Notice of a new and remarkable fossil bird. The American Journal of Science and Arts, series 3 4(19-24):344

Belongs to Ichthyornis according to J. A. Clarke 2004

See also Brodkorb 1971, Chatterjee 1991, Chiappe 2002, Gingerich 1972, Hay 1902, Lambrecht 1933, Marsh 1872, Marsh 1872, Marsh 1872, Marsh 1873, Marsh 1873, Marsh 1880, Martin and Stewart 1977, Olson 1975, Padian 2004, Parris and Echols 1992, Shufeldt 1915, Swinton 1934, Thurmond and Jones 1981, Walker 1967, Wetmore 1960, Wetmore 1962 and Zittel 1890

Sister taxon: Ichthyornis minusculus

Type specimens:

  • Ichthyornis dispar: YPM 1450, a partial skeleton (vertebrae, wings and legs). Its type locality is Bow Creek; Sugar Bowl Mound, which is in a Coniacian/Santonian marine chalk in the Niobrara Formation of Kansas.
  • Colonosaurus mudgei: Its type locality is Bow Creek; Sugar Bowl Mound, which is in a Coniacian/Santonian marine chalk in the Niobrara Formation of Kansas.
  • Ichthyornis agilis: YPM 1209, a limb element (proximal left carpometacarpus lacking metacarpal I).
  • Ichthyornis anceps: YPM 1208, a limb element (distal end, left metatarsal).
  • Ichthyornis antecessor: USNM 22820, a set of limb elements (left distal humerus). Its type locality is Hewlett Farm, which is in a Santonian/Campanian carbonate limestone in the Mooreville Chalk Formation of Alabama.
  • Ichthyornis validus: YPM 1740, a limb element (right ulna).
  • Ichthyornis victor: YPM 1452, a set of limb elements (proximal right coracoid, proximal right scapula, and three fragments of a poorly preserved left humerus).

Ecology: volant piscivore

Distribution:

• Cretaceous of Mexico (1 collection), United States (3: Kansas, Texas)

Total: 4 collections each including a single occurrence

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Specimen images are retrieved through the ePANDDA API.


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