Examples from the Web for urostyle
The urostyle is post-sacral and corresponds to three or more modified vertebrae.
The urostyle is the name given to a modified bony structure, originally the end of the notochord, turned upward in most fishes.A Guide to the Study of Fishes, Volume 1 (of 2)|David Starr Jordan
The post-sacral part of the spinal column ossifies continuously, forming an unsegmented cylindrical rod, the urostyle.
The ultimate changes of the notochord and urostyle vary very considerably in the different types of Teleostei.The Works of Francis Maitland Balfour, Volume III (of 4)|Francis Maitland Balfour
The urostyle is a long cylindrical rod which articulates with the sacrum generally by two facets.