| | Theropod wishbones (Site not responding. Last check: 2007-10-03) |
 | | The furcula is the "V" shaped bone found in birds formed by the fusion of the clavicles at the breastbone. |
 | | The furcula was long considered a key synapomorphy of birds, a character lacked by other theropods. |
 | | However, the presence of furculae in these two groups, which share a common ancestor with maniraptoriformes far down the Dinosauria cladogram and thus are not closely related to them, indicates that furculae, either bony or cartilaginous, may have been common to all theropods. |
| www.dinosauria.com /jdp/archie/furcula.html (322 words) |