T-Rex Skeleton Tail repaired (A+B)

I was printing this work of art and I had trouble printing two pieces of the tail.
These two pieces are in these files:

TRex_Tail_A_C.stl
TRex_Tail_B_D.stl

I separate the files into parts and repair the two pieces, creating two separate files.

(1:1 scale)

TRex_Tail_A.stl
TRex_Tail_B.stl

I also seprate the other pieces from those files :

TRex_Tail_C.stl
TRex_Tail_D.stl
TRex_Tail_B_D-Clip.stl