Measurements of tridactyl tracks from the Kem Kem beds.

Abbreviations: De, depth, DII-IV, digits II to IV; FS, field specimen (i.e. not collected); FSAC-KK, Faculté des Sciences Aïn Chock Kem Kem collection; L, length; M, maximum; UCRC I, University of Chicago Research collection ichnofossil; W, width;° angle; * rough estimate because of substantial missing parts. Second column from the left records distance between digits II and III. Measurements in mm. Note that the poor definition and outline of the specimens mean that the values are estimates and approximate. See supporting information (Figure S1) for examples of measurements.