Pates et al.—Hurdiids from the middle Cambrian of Utah
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Figure 7. Comparison of musculature in Peytoia partial body from the Marjum Formation, House Range, Utah, USA, and Anomalocaris from the Burgess Shale, British Columbia, Canada. (1) USNM 374593, box 7.1 from Figure 6.1, showing position of musculature at the base of flaps; (2) ROM 62547, showing position of musculature at the base of flaps; (3) box from 1, showing faint linear features in musculature; (4) box from 2, showing clear linear features in musculature; (5) box 7.5 from Figure 6.1, showing linear features in matrix where musculature has been removed. (1, 2) Scale bars = 10mm; (3, 4, 5) scale bars = 1mm.
