Yi and Ambopteryx, for example, had elongated forelimb bones between their membranous wings, as well as a special wrist bone to help support the membrane.
Jeff ducked and strained his weight against the bunk, momentarily pinning the Zid's threshing forelimb.
The bones of the left forelimb are close together but not in a natural position.
The forelimb is transitional between the pectoral fin of Rhipidistia and the limb of early Amphibia.
Richardson, looking down, saw the long, fine reach of forelimb as steady as steel machinery.
The differences in the sternum and proportions of the forelimb reflect the more rapid flight of the hoary bat.