Question

What is Synsacrum???​

Answer 1

Synsacrum is an elongated composite sacrum containing a number of fused vertebrae, present in birds and some extinct reptiles.

Answer 2

Answer: The synsacrum is a skeletal structure of birds and other dinosaurs, in which the sacrum is extended by incorporation of additional fused or partially fused caudal or lumbar vertebrae and it can only be seen on birds. Some posterior thoracic vertebrae, the lumbar, sacral and a few anterior caudal vertebrae are fused to form a complex bone called synsacrum.