Fig. 2: The Snowy Plains Formation trackway slab.
From: Earliest amniote tracks recalibrate the timeline of tetrapod evolution
a, Photo of the slab, NMV P258240, as preserved. b, Same as in a, with footprints and trackways highlighted. Manus (front foot) prints are shown in yellow; pes (hind foot) prints are shown in blue. Am1–4, manus prints from trackway A; Ap1–4, pes prints from trackway A; Bm1–5, manus prints from trackway B; Bp1–4, pes prints from trackway B; Ip, isolated right pes print. c,d, Isolated right pes print Ip as a false-colour inverted scan image (c) and photo (d). e,f, Right manus print Am1 as a false-colour scan image (e) and photo (f). g, Photo of pes print Bp4 (above) and manus print Bm3 (below). In c–g, white arrows denote claw impressions or scratches, Roman numerals denote digit numbers. Scale bars, 50 mm (a) and 10 mm (c–g).
