Smith et al. Supplementary information

This is a folder that includes two files: Smith_et_al._Supplementary_Information (doc) and Smith_et_al._Supplementary_Information (pdf). Description of CPW.9A and Fig. 1: Acanthothoraci (CPW.9A); ‘Placodermi’, Prince of Wales Island, Canada (Early Devonian, Lochkovian): A, dorsal view of PrM plate, showing stellate tubercles (tub.st), also flattened ones on ventral ‘lip’ (asterisk) and bifurcating ethmoidal commissure (ec). B, ventral view of PrM plate, ventral lip, with in situ articulated anterior supragnathal (ASG) dental plates, separated by junction between them and ventral lip of PrM; perichondral bone of ethmoid region of the braincase (eth). Scale bar represents 0.50 cm for both images.