Utah's Derrick Favors fined $25,000
The league announced the fine Saturday.
The incident occurred with 24.8 seconds remaining in the third quarter in a physical game that saw four technicals called.
Favors, a second-year pro, acknowledged he lost his cool after getting called for another offensive foul.
Nowitzki wasn't penalized for his actions, though he did receive a technical at the end of the first half for spiking the ball hard onto the court.
Copyright 2012 by The Associated Press
MORE NBA HEADLINES
- Felton pleads guilty in gun case, spared jail
- Sources: Mavs close to deal with PG Nelson
- Mavs void Lewis contract due to knee issues
- Clips' 'bid book' shows Ballmer overpaying