Background Pony #0D6D
fin is implied by dorsal fin and has been tagged almost exclusively by a BP over the course of the last year
fins is implied by tail fin and fin wings, and has been used by other people (as well as a lot by that BP who seems to have a targeted interest in underwater creatures)
fins is implied by tail fin and fin wings, and has been used by other people (as well as a lot by that BP who seems to have a targeted interest in underwater creatures)
So, it would probably be right to alias fin -> fins and then update dorsal fin to imply fins instead of fin