After Clarke, 2004
†Ichthyornis Marsh, 1872b
†Colonosaurus Marsh, 1872c
†Graculavus
†Plegadornis Wetmore, 1962
†Angelinornis Kashin, 1972
†Ichthyornis dispar Marsh, 1872b
†Colonosaurus mudgei Marsh, 1872c
†Graculavus anceps Marsh, 1872a
†Graculavus agilis Marsh, 1873c
†Ichthyornis victor Marsh, 1876
†Ichthyornis anceps (Marsh); Marsh, 1880
†Ichthyornis agilis (Marsh); Marsh, 1880
†Ichthyornis validus Marsh, 1880
†Plegadornis antecessor Wetmore, 1962
†Ichtyornis antecessor (Wetmore) Olson, 1975
Reference(s):
- Clarke, J. A., 2004: Morphology, phylogenetic taxonomy, and systematics of Ichthyornis and Apatornis (Avialae: Ornithurae).
–Bulletin of the American Museum of Natural History: Vol. #286, pp. 1-179