id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
giw-27	Carpenter, Kenneth; Ottinger, Lin	Permo-Pennsylvanian shark teeth from the Lower Cutler beds near Moab, Utah	2018	14	.pdf	application/pdf	7475	289	55	Petalodus tooth illustrated by Portlock (1843, plate 14, figure 10) a few years after Agassiz’s descriptions (scale unknown) in (W) labial view. Possible serial stacking of replacement teeth in lat- eral view (A) of Petalodus to explain the convexo-concave crown (A, lower teeth only), versus the dental occlusion (B, lower and upper teeth) advocated by Lucas and others (2011) for the same convexo-concave feature.	cache/giw-27.pdf	txt/giw-27.txt