Probable stegosaurian dinosaur tracks from the Saltwick Formation (Middle Jurassic) of Yorkshire, England

Abstract

A unique dinosaur track, figured by the authors in 1994, from the Saltwick Formation (Aalenian Stage, Middle Jurassic) of Yorkshire, has been referred to Ravatichnus kotshnevi from the Middle Jurassic of Tadjikistan, Central Asia. This ichnospecies has been attributed to an ornithischian, possibly stegosaur, producer. This track is here reinterpreted as two superimposed tracks of Deltapodus brodricki Whyte & Romano, 1994 . Deltapodus brodricki , originally thought to have been made by a sauropod, is here interpreted as having been made by a stegosaurian dinosaur which makes it one of the earliest known records of this group.