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Figure 15. Dorsal ribs of P. jonesi. 1, FWMSH 93B-10-13 in caudal view; 2, close-up of the proximal end of FWMSH 93B-10-13 showing pneumatic cavities; 3, FWMSH 93B-10-23 in caudal view. Scale bars are 10 cm.
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Figure 15. Dorsal ribs of P. jonesi. 1, FWMSH 93B-10-13 in caudal view; 2, close-up of the proximal end of FWMSH 93B-10-13 showing pneumatic cavities; 3, FWMSH 93B-10-23 in caudal view. Scale bars are 10 cm.
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