TABLE 6. Summary of results of pairwise comparisons of one-way ANOVAs of tooth dimensions by species at =0.05. Items in bold indicate significant comparisons.

	Tooth position	Dimension	Comparison	p-value for t-test
	P3	length	niobrarensis vs. fluviatilis	<0.001
			niobrarensis vs. galbreathi	0.048
			fluviatilis vs. galbreathi	0.035
	P4	length	niobrarensis vs. fluviatilis	<0.001
			niobrarensis vs. galbreathi	<0.001
			fluviatilis vs. galbreathi	0.895
	M1	length	niobrarensis vs. fluviatilis	0.013
			niobrarensis vs. galbreathi	0.007
			fluviatilis vs. galbreathi	0.421
	M2	length	niobrarensis vs. fluviatilis	<0.001
			niobrarensis vs. galbreathi	0.030
			fluviatilis vs. galbreathi	0.679
	p3	length	niobrarensis vs. fluviatilis	0.222
			niobrarensis vs. galbreathi	0.011
			fluviatilis vs. galbreathi	0.004
		width	niobrarensis vs. fluviatilis	0.283
			niobrarensis vs. galbreathi	0.238
			fluviatilis vs. galbreathi	0.803
	p4	length	niobrarensis vs. fluviatilis	<0.001
			niobrarensis vs. galbreathi	0.032
			fluviatilis vs. galbreathi	<0.001
		tri width	niobrarensis vs. fluviatilis	<0.001
			niobrarensis vs. galbreathi	0.034
			fluviatilis vs. galbreathi	0.022
	m1	length	niobrarensis vs. fluviatilis	0.385
			niobrarensis vs. galbreathi	0.026
			fluviatilis vs. galbreathi	0.095
		tri width	niobrarensis vs. fluviatilis	0.002
			niobrarensis vs. galbreathi	0.085
			fluviatilis vs. galbreathi	0.781
	m2	length	niobrarensis vs. fluviatilis	<0.001
			niobrarensis vs. galbreathi	0.110
			fluviatilis vs. galbreathi	0.040
		tri width	niobrarensis vs. fluviatilis	<0.001
			niobrarensis vs. galbreathi	0.103
			fluviatilis vs. galbreathi	0.067
	m1+m2	length	niobrarensis vs. fluviatilis	<0.001
			niobrarensis vs. galbreathi	0.013
			fluviatilis vs. galbreathi	0.774
		tri width	niobrarensis vs. fluviatilis	<0.001
			niobrarensis vs. galbreathi	0.028
			fluviatilis vs. galbreathi	0.173