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PALAEONTOLOGY[online] | Media: Figure 2 - One of Edward Hitchcock's 'track books' displaying a full undertrack sequence. 'T' and 'B' refer to top or bottom of each 'page.' Bottom surfaces have been mirrored for comparing with Top surfaces.
Figure 2 - One of Edward Hitchcock's 'track books' displaying a full undertrack sequence. 'T' and 'B' refer to top or bottom of each 'page.' Bottom surfaces have been mirrored for comparing with Top surfaces. published on PALAEONTOLOGY[online].