Lundell put Florida ahead 4-3 after tapping in a deflection by Eetu Luostarinen at the left post following Sam Reinhart’s pass from the right boards.
Sam Bennett had two goals and an assist, and Carter Verhaeghe extended his goal streak to four games and had an assist for the Panthers (15-12-2), who have won three in a row. Sergei Bobrovsky made 27 saves.
Dylan Guenther scored twice, and Jack McBain also had a goal for the Mammoth (14-15-3), who have lost three in a row and seven of their past nine. Karel Vejmelka made 32 saves.
Guenther gave Utah a 1-0 lead at 11:23 of the first period, beating Bobrovsky between the legs on a breakaway.
Verhaeghe tied it 1-1 at 19:17, tipping in a shot from Aaron Ekblad.
Bennett put Florida ahead 2-1 at 1:40 of the second period when he beat Vejmelka with a wrist shot on the blocker side.
Bennett’s second goal of the game 1:44 later extended it to 3-1 at 3:24, tapping a pass from Verhaeghe.
Guenther’s second goal made it 3-2 at 3:37 after he beat Bobrovsky on another breakaway between the legs.
McBain tied it 3-3 at 14:37, sliding the puck past Bobrovsky on a rebound off a shot by Sean Durzi.
