Synonyms: Calops Hitchcock 1845, Calopus Hitchcock 1845
Full reference: E. Hitchcock. 1845. An attempt to name, classify, and describe, the animals that made the fossil footmarks of New England. Sixth Annual Meeeting of the Association of American Geologists and Naturalists, New Haven, CT. Abstract and Proceedings 23-25
Parent taxon: Saurischia according to H. Haubold 1971
Sister taxa: Alwalkeria, Anatopus, Anticheiropus, Argoides, Deuterotetrapous, Eusaurischia, Pachypodosauria, Plesiornis, Saurichnium, Sauropodomorpha, Tetrapodium, Theropoda, Trimabus
Subtaxa: Platypterna concamerata, Platypterna deanii, Platypterna delicatula, Platypterna digitigrada, Platypterna gracillima, Platypterna lockatong, Platypterna recta, Platypterna tenuis, Platypterna varica
Type: Ornithoidichnites macrodactylus
Ecology: