Genus
Ichnogenus Formal taxon Extinct

Leptonyx

replaced by Stenonyx
Hitchcock 1865
This taxon is considered replaced by of the valid taxon Stenonyx according to the Paleobiology Database. See the page for Stenonyx
Bibliography
Original description
E. Hitchcock. 1865. Supplement to the ichnology of New England. Supplement to the Ichnology of New England. A Report to the Government of Massachusetts in 1863