Dilophosaurus

Medium, Unaligned

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• Armor Class 14 (Natural Armor)
• Hit Points 32 (5d8+10)
• Speed 40ft

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STR 12	DEX 17	CON 14	INT 3	WIS 12	CHA 6
Str (+1)	Dex (+3)	Con (+2)	Int (-3)	Wis (+1)	Cha (-2)

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• Languages: None
• Challenge: 1 (200xp)

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• Frilled Fear: As a standard action the Dilophosaurus can attempt to frighten one enemy. The enemy must make a DC 11 Wisdom saving throw or be frightened for 1 minute. The enemy can make a new save at the end of each of their turns.

Actions

Bite. Melee Weapon Attack: +2 to hit, Reach 5ft, one target. Hit: 6(1d8+1) Piercing damage

Poison Spit. Ranged Weapon Attack: +5 to hit, Range 30ft, one target. Hit: The target must make a DC 12 Constitution save, taking 13(3d8) poison damage on a failed save or half damage on a successful one. On a failed save the target is blinded for 1 minute. The creature can take one action to wipe the spit from its eyes.

Parasaurolophus

Large, Unaligned

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• Armor Class 15 (Natural Armor)
• Hit Points 85 (9d10+36)
• Speed 50ft

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STR 18	DEX 14	CON 18	INT 2	WIS 12	CHA 6
Str (+4)	Dex (+2)	Con (+4)	Int (-4)	Wis (+1)	Cha (-2)

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• Languages: None
• Challenge: 3 (700xp)

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• Trumpeting Blast: The Parasaurolophus lets out a blast of sound, forcing any creature within 5ft to make a DC 14 constitution saving throw of be deafened for 1 min. A deaf creature can make a new save at the beginning of its turn to end the effect.
• Charging Trample: If Parasaurolophus moves at least 30ft straight toward a creature and connects with a tail attack, that target must make a DC 14 Strength saving throw or be knocked prone and take 22(4d8+4) Bludgeoning Damage.
• Pack Animal: The Parasaurolophus has a carrying capacity of its strength score times 40.

Actions

Tail. Melee Weapon Attack: +6 to hit, Reach 10ft, one target. Hit: 15(2d10+4) Bludgeoning damage

Carnotaurus

Large, Unaligned

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• Armor Class 14 (Natural Armor)
• Hit Points 95 (10d10+40)
• Speed 50ft

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STR 22	DEX 14	CON 18	INT 4	WIS 12	CHA 6
Str (+6)	Dex (+2)	Con (+4)	Int (-3)	Wis (+1)	Cha (-2)

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• Skills: +7 Perception
• Languages: None
• Challenge: 4 (1,100xp)

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• Keen Smell: The Carnotaurus has advantage on Wisdom (Perception) checks that rely on smell.
• Ferocious Charge: If Carnotaurus moves at least 30ft straight toward a creature and then hits with a gore attack that attack deals an extra 15(2d8+6) Bludgeoning Damage and the enemy must succeed at a DC 16 Strength saving throw or be knocked prone. The Carnotaurus can make a bite attack on the target as a bonus action.
• Rampage: When the Carnotaurus reduces a creature to 0 Hit Points with a Melee Attack on its turn, the Carnotaurus can take a Bonus Action to move up to half its speed and can make a Bite Attack.

Actions

Gore. Melee Weapon Attack: +8 to hit, Reach 5ft, one target. Hit: 15(2d8+6) Piercing damage

Bite. Attack Style: +8 to hit, Reach 5ft, one target. Hit: 17(2d10+6) Piercing damage

Megalosaurus

Large, Unaligned

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• Armor Class 16 (Natural Armor)
• Hit Points 93 (9d10+44)
• Speed 50ft

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STR 22	DEX 18	CON 20	INT 4	WIS 12	CHA 6
Str (+6)	Dex (+4)	Con (+5)	Int (-3)	Wis (+1)	Cha (-2)

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• Senses: Darkvision 120ft
• Skills: +9 Stealth
• Languages: None
• Challenge: 5 (1,800xp)

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• Stealthy Hunter: The Megalosaurus has advantage on stealth checks.

Actions

Bite. Melee Weapon Attack: +9 to hit, Reach 5ft, one target. Hit: 19(2d12+6) Piercing damage. If the target is medium size or smaller it is grappled (escape DC 17) Until this grapple ends, the target is restrained, takes 25(2d12+12) Piercing Damage during the Megalosaurus's turn and the Megalosaurus cannot use its bite attack. The Megalosaurus can move normally during this grapple.

Claw. Attack Style: +9 to hit, Reach 5ft, one target. Hit: 14(2d8+5) Piercing damage

Mosasaurus

Huge, Unaligned

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• Armor Class 13 (Natural Armor)
• Hit Points 125 (10d12+60)
• Speed 50ft Swim

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STR 25	DEX 13	CON 22	INT 4	WIS 12	CHA 6
Str (+7)	Dex (+1)	Con (+6)	Int (-3)	Wis (+1)	Cha (-2)

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• Skills +8 Perception
• Languages None
• Challenge 6 (2,300xp)

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• Hold Breath: The Mosasaurus can hold its breath for 20 minutes.
• Sense Prey: The Mosasaurus has advantage on rolls to find, and track an enemy in water
• Swallow: The Mosasaurus makes one bite Attack against a medium or smaller target it is Grappling. If the Attack hits, the target is swallowed, and the grapple ends. The swallowed target is Blinded and Restrained, it has total cover against attacks and other Effects outside the Mosasaurus, and it takes 21 (6d6) acid damage at the start of each of the Mosasaurus's turns. The Mosasaurus can have only 1 target swallowed at a time. If the Mosasaurus dies, a swallowed creature is no longer Restrained by it and can escape from the corpse using 5 feet of Movement, exiting prone.

Actions

Bite. Melee Weapon Attack: +10 to hit, Reach 5ft, one target. Hit: 29(4d10+7) Piercing damage. The target is grappled (escape DC 18). Until this grapple ends, the target is restrained, and the Mosasaurus can't bite another target.

Pachycephalosaurus

Large, Unaligned

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• Armor Class 15 (Natural Armor)
• Hit Points 95 (10d10+40)
• Speed 40ft

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STR 25	DEX 14	CON 18	INT 2	WIS 12	CHA 6
Str (+7)	Dex (+2)	Con (+4)	Int (-4)	Wis (+1)	Cha (-2)

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• Condition Immunities: Stunned
• Languages: None
• Challenge: 6 (2,300xp)

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• Concussive Charge: If the Pachycephalosaurus moves at least 30ft straight toward a target and then hits with a ram attack, that target must succeed on a DC 18 Strength saving throw or be thrown 5ft backward, is knocked prone, stunned until the end of its next turn, and takes an extra 25(2d10+14) Bludgeoning Damage. Add an additional 5(1d10) Bludgeoning Damage if the target hits a creature or object upon being knocked back.

Actions

• Multiattack: The Pachycephalosaurus can make two attacks per turn, one ram attack and one tail attack. These attacks may not be against the same target.

Ram. Melee Weapon Attack: +9 to hit, Reach 5ft, one target. Hit: 25(2d10+14) Bludgeoning damage

Tail. Melee Weapon Attack: +9 to hit, Reach 5ft, one target. Hit: 16(2d8+7) Bludgeoning damage

Majungasaurus

Large, Unaligned

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• Armor Class 14 (Natural Armor)
• Hit Points 115 (10d10+60)
• Speed 50ft

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STR 26	DEX 12	CON 23	INT 4	WIS 12	CHA 6
Str (+8)	Dex (+1)	Con (+6)	Int (-3)	Wis (+1)	Cha (-2)

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• Skills: +9 Perception
• Languages: None
• Challenge: 7 (2,900xp)

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• Keen Smell: The Majungasaurus has advantage on Wisdom (Perception) checks that rely on smell.
• Pinning Charge: If the Majungasaurus moves at least 30ft straight toward a creature and then hits with a stomp attack, that target must succeed on a DC 19 Strength saving throw or be knocked prone. The Majungasaurus can make an immediate bite attack at a target knocked prone in this way.
• Wounded Fury: *While it has 40 hit points or fewer, the Majungasaurus has advantage on attack rolls. In addition, it deals an extra 9(2d8) damage to any target it hits with a melee attack.

Actions

Multiattack The Majungasaurus can make two attacks each turn. One bite attack and one stomp attack.

Bite. Melee Weapon Attack: +11 to hit, Reach 5ft, one target. Hit: 27(2d10+16) Piercing damage

Stomp. Attack Style: +11 to hit, Reach 5ft, one target. Hit: 19(2d10+8) Bludgeoning damage

Tyrannosaurus Rex

Huge, Unaligned

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• Armor Class 13 (Natural Armor)
• Hit Points 162 (12d12+84)
• Speed 50ft

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STR 29	DEX 10	CON 24	INT 5	WIS 12	CHA 6
Str (+9)	Dex (+0)	Con (+7)	Int (-3)	Wis (+1)	Cha (-2)

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• Skills: +9 Perception
• Languages: None
• Challenge: 8 (3900xp)

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• Keen Smell: The Tyrannosaurus has advantage on Wisdom (Perception) checks that rely on smell.

Actions

Multiattack The Tyrannosaurus can make two attacks each turn. One bite attack and one tail attack. It can't make both attacks against the same target.

Bite. Melee Weapon Attack: +12 to hit, Reach 10ft, one target. Hit: 35(4d12+9) Piercing damage. If the target is medium size or smaller it is grappled (escape DC 20) Until this grapple ends, the target is restrained, and the Tyrannosaurus cannot use its bite attack. The Tyrannosaurus can move normally during this grapple.

Tail. Attack Style: +12 to hit, Reach 10ft, one target. Hit: 22(3d8+9) Bludgeoning damage

Spinosaurus

Huge, Unaligned

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• Armor Class 14 (Natural Armor)
• Hit Points 162 (12d12+84)
• Speed 50ft, 30ft Swim

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STR 30	DEX 10	CON 24	INT 5	WIS 12	CHA 6
Str (+9)	Dex (+0)	Con (+7)	Int (-3)	Wis (+1)	Cha (-2)

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• Skills: +9 Perception
• Languages: None
• Challenge: 9 (5,000xp)

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• Hold Breath: The Spinosaurus can hold its breath for 10 minutes.
• Keen Smell: The Spinosaurus has advantage on Wisdom (Perception) checks that rely on smell.

Actions

Multiattack The Spinosaurus can use its Frightful Presence. It can then make two attacks. One bite attack and one tail attack. It can't make both attacks against the same target.

Bite. Melee Weapon Attack: +12 to hit, Reach 10ft, one target. Hit: 36(4d12+10) Piercing damage.

Tail. Attack Style: +12 to hit, Reach 10ft, one target. Hit: 23(3d8+10) Bludegoning damage

Frightful Presence: Each creature that is within 120 feet of the Spinosaurus and aware of it must succeed on a DC 18 Wisdom saving throw or become Frightened for 1 minute. A creature can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success. If a creature's saving throw is successful or the effect ends for it, the creature is immune to the Spinosaurus's Frightful Presence for the next 24 hours.

Basilosaurus

Gargantuan, Unaligned

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• Armor Class 12 (Natural Armor)
• Hit Points 210 (10d20+84)
• Speed 40ft Swim

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STR 27	DEX 12	CON 27	INT 6	WIS 12	CHA 6
Str (+8)	Dex (+1)	Con (+7)	Int (-2)	Wis (+1)	Cha (-2)

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• Skills: +9 Perception
• Condition Immunities: Stunned
• Languages: None
• Challenge: 9 (5,000xp)

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• Hold Breath: The Basilosaurus can hold its breath for 20 minutes.
• Sense Prey: The Basilosaurus has advantage on rolls to find, and track an enemy in water
• Swallow: The Basilosaurus makes one bite Attack against a large or smaller target it is Grappling. If the Attack hits, the target is swallowed, and the grapple ends. The swallowed target is Blinded and Restrained, it has total cover against attacks and other Effects outside the Basilosaurus, and it takes 21 (6d6) acid damage at the start of each of the Basilosaurus's turns. The Basilosaurus can have only 1 large or 2 medium targets swallowed at a time. If the Basilosaurus dies, a swallowed creature is no longer Restrained by it and can escape from the corpse using 5 feet of Movement, exiting prone.
• Ramming Charge: If the Basilosaurus moves at least 30ft straight toward a target and then hits with a ram attack, that target must succeed on a DC 20 Strength saving throw or be stunned until the end of its next turn, and take an extra 38(4d10+16) Bludgeoning damage
• Battering Ram: The Basilosaurus's Ram Attack and Ramming Charge deal double damage to watercraft.

Actions

Bite. Melee Weapon Attack: +12 to hit, Reach 10ft, one target. Hit: 41(6d10+8) Piercing damage. The target is grappled (escape DC 20). Until this grapple ends, the target is restrained, and the Basilosaurus can't bite another target.

Ram. Attack Style: +12 to hit, Reach 5ft, one target. Hit: 38(4d10+16) Bludgeoning damage

Gigantosaurus

Gargantuan, Unaligned

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• Armor Class 12 (Natural Armor)
• Hit Points 175 (10d20+70)
• Speed 40ft

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STR 33	DEX 8	CON 25	INT 5	WIS 12	CHA 6
Str (+11)	Dex (-1)	Con (+7)	Int (-3)	Wis (+1)	Cha (-2)

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• Skills: +9 Perception
• Condition Immunities: Frightened
• Languages: None
• Challenge: 10 (5,900xp)

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• Keen Smell: The Gigantosaurus has advantage on Wisdom (Perception) checks that rely on smell.
• Swallow: The Gigantosaurus makes one bite Attack against a large or smaller target it is Grappling. If the Attack hits, the target is swallowed, and the grapple ends. The swallowed target is Blinded and Restrained, it has total cover against attacks and other Effects outside the Gigantosaurus, and it takes 21 (6d6) acid damage at the start of each of the Gigantosaurus's turns. The Gigantosaurus can have only one large or two medium targets swallowed at a time. If the Gigantosaurus dies, a swallowed creature is no longer Restrained by it and can escape from the corpse using 5 feet of Movement, exiting prone.
• Rampage: When the Gigantosaurus reduces a creature to 0 Hit Points with a Melee Attack on its turn, the Gigantosaurus can take a Bonus Action to move up to half its speed and make a Bite Attack.

Actions

Multiattack The Gigantosaurus can make three attacks. One bite attack, one tail and one claw attack. It can't make the tail attack against the same target as the bite or claw attack. Bite. Melee Weapon Attack: +16 to hit, Reach 10ft, one target. Hit: 50(6d12+11) Piercing damage. The target is grappled (escape DC 23). Until this grapple ends, the target is restrained, and the Gigantosaurus can't bite another target.

Tail. Melee Weapon Attack: +16 to hit, Reach 20ft, one target. Hit: 29(4d8+11) Bludgeoning damage

Claw. Melee Weapon Attack: +16 to hit, Reach 10ft, one target. Hit: 33(4d10+11) Slashing damage