Non-Listed Players

[Bandit]

Had a situation last night where a player was substituted into a NFHS game and was not listed on the lineup card and in fact not even on the program (not that the program has any bearing, just made the scorekeeper scramble).

Umpire stated that any player could be entered into the game and teams did not need to even have any of the available substitutes listed on the lineup card.
When reviewing the rule back last night I found that to be incorrect.

What is the ruling when a player is not listed? Is there a penalty in baseball? I know in softball there is but i could find no penalty in the baseball rule book. Did I miss something?