Swiss Journal of Palaeontology

Table 3 Results of PCA of 2D conventional microwear analysis

From: Complex dental wear analysis reveals dietary shift in Triassic placodonts (Sauropsida, Sauropterygia)

	PC1	PC2	PC3	PC4
Standard deviation	1.4172	1.2125	0.7119	0.12101
Proportion of variance	0.5021	0.3675	0.1267	0.00366
Cumulative proportion	0.5021	0.8696	0.9963	1
pit length	−0.6944	0.0871	0.1618	0.6957
pit width	−0.7025	−0.0144	0.0456	−0.7100
scratch length	−0.1404	−0.6980	−0.6937	0.1086
scratch width	−0.0671	0.7106	−0.7003	0.0070

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