Most research articles and anatomy books say that chickens have 14 cervival vertebrae and 7 thoracic vertebrae. Some notes about the thoracic vertebrae: T1 is unfused, T2-T5 is fused, T6 is unfused, T7 is fused to the lumbosacral. I dissected a chickens today and saw that the 14th cervical vertebrae had ribs! So if the 14th cervical vertebrae is indeed a thoracic vertebrae, does it mean it has only 13 cervical vertebrae? And does it mean the chicken has 8 thoracic vertebrae contrary to what the articles say? If this is so... then... T1-T2 is unfused, T3-T6 is fused, T7 is unfused and T8 is fused to the lumbosacral...? Any ideas?