Sarjeant concluded that the manus was pentadactyl with a very long thin digit IV, and is much smaller than the pes.
The pes is indeed significantly larger than the manus, and the pes are pentadactyl. Posterior to each pes impression, an elliptical to semi-lunate impression the width of the trackway is observed.
The tetradactyl manus and pentadactyl pes of the Lepreau Falls trackways conform to interpretations by Haubold et al.
a pentadactyl pes and tetradactyl manus; pes digits that increase in length from I to IV, with digit V subequal in length to digit II; relatively thick pes and manus digits with blunt/rounded distal tips; broad and rounded sole imprints; manus just in front of pes; manus digits I-III obliquely set (turned) toward the trackway midline; and manus digits that increase in length from I to III, with digit IV subequal in length to digit II (cf.
EMENDED DIAGNOSIS: Quadrupedal tetrapod tracks consisting of a pentadactyl pes and a tetradactyl manus; pes digits increase in length from I-IV, with digit V subequal in length to digit II; commonly with relatively thick manus and pes digits with blunt to rounded distal tips, but may be short and slender; broad rounded sole imprints; manus just in front of pes; manus digits I-III obliquely set toward the trackway midline; and manus digits that increase in length from I-III, with digit IV subequal in length to digit II (Modified from Lucas and Dalman 2013).
The track consists of an isolated pentadactyl
ectaxonic right manus footprint of length 25mm and width 24mm.
The larger track, on the left, is pentadactyl and is nearly twice the length of the tetradactyl track.
The smaller, tetradactyl track is inferred to be that of the manus, whereas the larger pentadactyl track is that of the pes.
Description: Manus and pes both pentadactyl, with the pes imprint somewhat more elongate (possibly exaggerated by toe dragging).
The Notalacerta tracks share several morphological features with the lacertoide Permian ichnogenera Dromopus Marsh, 1894 and especially Varanopus Moodie, 1929, including lacertoid morphology, pentadactyl manus and pes, and similar increase in length of digits I through IV (Haubold 1971; Haubold and Lucas 2001).