Table 2. Results of the pairwise comparison to test for differences in tooth shape between the examined groups. Signficance is depicted as p-value (an asterisk indicates a p-value < 0.05). d, distance; UCL, upper confidence limit; Z, Z-score.

		d	UCL (95%)	Z	p
Genera	Galeocerdo: Hemipristis	0.22105688	0.06072138	13.18929	0.001*
	Galeocerdo: †Physogaleus	0.08449665	0.02238477	13.76419	0.001*
	Hemipristis: †Physogaleus	0.18821240	0.06107171	11.02890	0.001*
Epochs	Eocene: Oligocene	0.10098920	0.10209586	1.854888	0.055
	Oligocene: Miocene	0.12911354	0.10152548	3.221054	0.007*
	Miocene: Pliocene	0.04564208	0.02440129	5.873084	0.001*
	Pliocene: Holocene	0.02514313	0.02663928	1.632904	0.068
Species	†G. clarkensis: †G. eaglesomei	0.07441448	0.04510858	4.942268	0.001*
	†G. clarkensis: †G. latidens	0.07202117	0.06429810	2.363137	0.023*
	†G. eaglesomei: †G. latidens	0.05405425	0.06630524	1.087175	0.124
	†G. aduncus: †G. rosaliaensis	0.07196333	0.03722257	6.309912	0.001*
	†G. aduncus: G. cuvier	0.04839204	0.02073741	7.789240	0.001*
	†G. aduncus: †G. mayumbensis	0.13711298	0.03392790	14.400205	0.001*
	G. cuvier: †G. rosaliaensis	0.03718237	0.03594076	2.130237	0.042*
	G. cuvier: †G. mayumbensis	0.13906022	0.03221319	15.260713	0.001*
	†G. mayumbensis: †G. rosaliaensis	0.15042923	0.04533909	11.932072	0.001*