Well, I'm trying to get L. mother at least to the first four caracther's, but I doubt it will be possible.
Littlefoot(42)
Cera(41)
Ducky(32)
Petrie(32)
Ruby(45)
Ali(41)
Grandma/Grandpa Longneck(16)
Littlefoot's Mom(5)+1=(6)
Pterano(27)-1=(26)
Ducky's and Spike's Mom(16)