Avisauridae leg formed by fused metatarsals (the bones which comprise the foot in humans). As a result, members of this family are distinguished from other enantiornitheans exclusively by features of the tarsometatarsal and pedal phalanges (toe bones). Unlike in some prehistoric birds, avisaurid tarsometatarsals were not completely fused, with the distal (outer) parts of the metatarsals being separate from each other. The proximal (near) half of metatarsal III (the long bone in the middle of the tarsometatarsus) is convex from the front. The inside edge of this bone's trochlea (toe joint) has a bony tab which points downward, known as a
The Bones of Zora The Bones of Zora The Bones of Zora is a science fiction novel by American writers L. Sprague de Camp and Catherine Crook de Camp, the ninth book of the former's "Viagens Interplanetarias" series and the seventh of its subseries of stories set on the fictional planet Krishna. Chronologically it is the sixth Krishna novel. It was first published in hardcover by Phantasia Press in 1983, and in paperback by Ace Books in August, 1984 as part of the standard edition of the Krishna novels. An E-book edition was published by Gollancz's SF Gateway imprint on September 29, 2011 as