"Skull of Boa constrictor. a, quadrate bone; b, b, halves of lower jaw." -Cooper, 1887

Boa Constrictor Skull

"Skull of Boa constrictor. a, quadrate bone; b, b, halves of lower jaw." -Cooper, 1887

"Pectoral girdle of a Chelonian. G., Glenoid cavity; SC., scapula; P.C., procoracoid fused to the scapula; C., coracoid; E.C., epicoracoid cartilage; L., ligament." -Thomson, 1916

Turtle Pectoral Girdle

"Pectoral girdle of a Chelonian. G., Glenoid cavity; SC., scapula; P.C., procoracoid fused to the scapula;…