Left scapulocoracoid WAM 09.6.145–007 of Gogoselachus lynbeazleyae, Gogo Formation, Western Australia.
(A) posterior (B) medial and (C) lateral views. D, close up of posterior face showing articulation area for pectoral fin, E., interpretation of same area. F, close up of central lateral surface showing diazonal foramen (df). Abbreviations: af, articulation facets; artc, articular crest; br, break in bone; cobr, coracobrachialis muscle attachment area; cohy, coracohyoideus muscle attachment area; cp, coracoid plate; df, diazonal foramina; muscle attachment areas; flr, mediolateral pectoral retractor muscle attachment area; pdm, pectoral depressor muscle attachment area; pla, posterolateral process; pf.ar1,2, pectoral fin articulation areas 1 and 2; pla, posterolateral angle; pva, posteroventral angle; ri, ridge; sup, supinator attachment area.
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