1E MM:
Plesiosaurus
FREQUENCY: Common
NO. APPEARING: 1-3
ARMOR CLASS: 7
MOVE: 15"
HIT DICE: 20
% IN LAIR: Nil
TREASURE TYPE: Nil
NO. OF ATTACKS: 1
DAMAGE/ATTACK: 5-20
SPECIAL ATTACKS: See below
SPECIAL DEFENSES: Nil
MAGIC RESISTANCE: Standard
INTELLIGENCE: Non-
ALIGNMENT: Neutral
SIZE: L (50'- long)
PSIONIC ABILITY: Nil'
Attack/Defense Modes: Nil
The plesiosaurus strongly resembles a snake wearing a turtle's body (sans shell). They tend to be very aggressive and attack anything. The creature's neck is about one-third of its total length, and it is strong and fast. In a marine battle it can strike with its powerful fore flippers for 2-12 points of damage with each.
MC3:
CLIMATE/TERRAIN: Any ocean
FREQUENCY: Common
ORGANIZATION: Solitary
ACTIVITY CYCLE: Day
DIET: Carnivore
INTELLIGENCE: Non- (0)
TREASURE: Nil
ALIGNMENT: Nil
NO. APPEARING: 1-3
ARMOR CLASS: 7
MOVEMENT: 15
HIT DICE: 20
THAC0: 5
NO. OF ATTACKS: 1
DAMAGE/ATTACK: 3-12
SPECIAL ATTACKS: See below
SPECIAL DEFENSES: Nil
MAGIC RESISTANCE: Nil
SIZE: L (8' + long)
MORALE: Average (10)
XP VALUE: 120
Plesiosaurus
The plesiosaurus strongly resembles a snake wearing a turtle's body (sans shell). It tends to be very aggressive, attacking anything it notices. While not as long overall as its relative, the elasmosaurus, the plesiosaurus has a neck that is about one-third of its total length. The creature is strong and fast, and highly maneuverable in the water - it can "turn on a silver piece" to lunge at its prey. In a marine battle it can strike with its powerful fore flippers, inflicting 2d6 points of damage with each.
MCA2:
CLIMATE/TERRAIN: Any ocean
FREQUENCY: Common
ORGANIZATION: Solitary
ACTIVITY CYCLE: Day
DIET: Carnivore
INTELLIGENCE: Non- (0)
TREASURE: Nil
ALIGNMENT: Neutral
NO. APPEARING: 1-3
ARMOR CLASS: 7
MOVEMENT: Sw 15
HIT DICE: 20
THAC0: 5
NO. OF ATTACKS: 1
DAMAGE/ATTACK: 3d4
SPECIAL ATTACKS: Flippers
SPECIAL DEFENSES: Nil
MAGIC RESISTANCE: Nil
SIZE: H (18' + long)
MORALE: Average (10)
XP VALUE: 12,000
Plesiosaurus
The plesiosaurus strongly resembles a snake with a turtle's body (sans shell). It tends to be very aggressive, attacking anything it notices. While not as long overall as its relative, the elasmosaurus, the plesiosaurus has a neck that is one-third of its total length. The creature is strong and fast, and highly maneuverable in the water – it can "turn on a silver piece" to lunge at its prey. In a marine battle it can strike with its powerful fore flippers, inflicting 2d6 points of damage with each.
X1:
Plesiosaurus
Armor Class: 6
Hit Dice: 16
Move:
Swimming: 150' (50')
Attacks: 1 bite
Damage: 4-24
No. Appearing: 0(1-3)
Save As: Fighter: 8
Morale: 9
Treasure Type: Nil
Alignment: Neutral
A plesiosaurus is a fish-eating, lake-dwelling dinosaur, usually about 30'-50' long. It has an extremely long neck and a large snake-like head filled with sharp teeth. This dinosaur has small flippers in place of legs to aid in swimming. It is aggressive and can overturn small boats and rafts.
and here is demiurge’s version:
Plesiosaurus
Huge Animal
Hit Dice: 6d8+33 (60 hp)
Initiative: +2
Speed: 20ft (4 squares), swim 50ft
Armor Class: 13 (-2 size, +2 Dex, +3 natural), touch 10, flat-footed 11
Base Attack/Grapple: +4/+18
Attack: Bite +8 melee (2d6+9)
Full Attack: Bite +8 melee (2d6+9)
Space/Reach: 15ft/10ft
Special Qualities: Low-light vision, scent
Saves: Fort +10, Ref +7, Will +3
Abilities: Str 23, Dex 15, Con 20, Int 2, Wis 13, Cha 7
Skills: Hide -3*, Listen +6, Spot +6, Swim +14
Feats: Alertness, Endurance, Toughness
Environment: Warm aquatic
Organization: Solitary, pair or herd (3-12)
Challenge Rating: 5
Treasure: None
Alignment: Always neutral
Advancement: 7-12 HD (Huge), 13-18 HD (Gargantuan)
Level Adjustment: -
This beast has a thick, ovoid body with fins instead of legs and a log, snaky neck and tail. The neck takes up about one third of the creature’s total length.
The plesiosaurus is a smaller relative of the elasmosaurus.
A plesiosaurus is around 20 feet in length from nose to tail, and much of this is neck and tail. They weigh about 3000 pounds and are more aggressive than their larger relatives. Although they eat fish almost exclusively, they are easily disturbed by other large moving objects in their territory, like ships.
Combat
Plesiosaurs attack exclusively with their powerful bites. They favor ambush tactics when hunting and many lookouts don’t know they’re in plesiosaur territory until it’s too late.
Skills: Plesiosaurs receive a +8 racial bonus on Hide checks made underwater.
A plesiosaurus has a +8 racial bonus on any Swim check to perform a special action or avoid a hazard. It can always choose to take 10 on a Swim check, even if distracted or endangered. It can use the run action while swimming, provided it swims in a straight line.
, although I have to admit that the Dragon Magazine Parasaurolophus stats are probably going to fulfill all of my endlessly exciting duckbill-chasing adventure fantasies from now on.
