Multiattack

The spinosaurus makes one Bite attack and one Claw attack.

Bite

Melee Weapon Attack: +8 to hit, reach 10 ft., one target. Hit: 24 (3d12 + 5) piercing damage. If the target is a Medium or smaller creature, it is grappled (escape DC 15). Until this grapple ends, the target is restrained, and the spinosaurus can't Bite another target.

Claw

Melee Weapon Attack: +8 to hit, reach 5 ft., one target. Hit: 15 (3d6 + 5) slashing damage.