The manus is tetradactyl, and the pes is pentadactyl (Fig.
Although even the best manus (LM2) is too poorly preserved to be interpreted with confidence, it appears to show at least a tetradactyl arrangement with extensive extramorphology.
In ankylosaurian ichnotaxa, as Metatetrapous Nopcsa, 1923 and Tetrapodosaurus Sternberg, 1932, pes prints are tetradactyl
with forward-oriented digit impressions and a subtriangular contour shape (e.g., McCrea et al., 2001; Hornung and Reich, 2014).
Savage and Lips (1993) also continued to recognize the Hispaniolan diploglossine tetradactyl
genera, Sauresia and Wetmorea, both with claw sheaths, as distinct from Diploglossus.
Footprints of a quadrupedal tetrapod in which the manus is tetradactyl
and the pes is pentadactyl.
The ichnospecies was based on a single tetradactyl
footprint, 16 cm long and 12 cm wide.
DIAGNOSIS: Quadrupedal, plantigrade tetrapod trackway with tetradactyl
manus and pentadactyl pes imprints.
Atreipus acadianus was produced by a habitually quadrupedal tetrapod with a tridactyl pes and a functionally tetradactyl
This material includes well preserved pentadactyl and tetradactyl
trackways of at least six different forms of both small and rather large tetrapods that were capable of locomotion on land (Smithson et al.