Dinosaur, Aquatic

	Archelon	Dinichthys	Mosasaurus	Nothosaurus	Plesiosaurus	Temnodontosaurus
	Archelon	Dinichtys	Mosasaure	Nothosaure	Plésiosaure	Temnodontosaure
Climate/Terrain:	Any ocean	Any ocean	Any water	Any water	Any ocean	Any ocean
Frequency:	Uncommon	Common	Uncommon	Uncommon	Common	Rare
Organization:	Solitary	Solitary	Solitary	Solitary	Solitary	Solitary
Activity Cycle:	Day	Day	Day	Day	Day	Day
Diet:	Carnivore	Carnivore	Carnivore	Carnivore	Carnivore	Carnivore
Intelligence:	Non- (0)	Non- (0)	Non- (0)	Non- (0)	Non- (0)	Non- (0)
Treasure:	Nil	Nil	Nil	Nil	Nil	Nil
Alignment:	Neutral	Neutral	Neutral	Neutral	Neutral	Neutral

No. Appearing:	1-4	1-4	1-3	1	1-3	1 (10% for 2)
Armor Class:	3	7	7	6	7	4
Movement:	3, Sw 15	Sw 21	3, Sw 15	3, sw 18	Sw 15	Sw 24
Hit Dice:	7	10	12	6	20	10
THAC0:	13	11	9	15	5	11
No. of Attacks:	1	1	1	1	1	1
Damage/Attack:	3d4	5d4	4d8	5d4	3d4	5d4
Special Attacks:	Nil	Swallow	Nil	Frenzy	Flippers	Frenzy
Special Defenses:	Nil	Nil	Nil	Nil	Nil	Nil
Magic Resistance:	Nil	Nil	Nil	Nil	Nil	Nil
Size:	L (12’ dia.)	H (25’+ long)	G (50’ long)	L (10’+ long)	H (18’+ long)	G (30’ long)
Morale:	Steady (11)	Steady (11)	Steady (11)	Average (10)	Average (10)	Steady (12)
XP Value:	420	4,000	4,000	650	12,000	2,000

Archelon (Ischyras)

This large marine turtle is not truly a dinosaur, but a reptile. Its shell is like that of a leatherback turtle – thick and rubbery rather than being formed of solid plates. With its powerful front flippers, the archelon is a fist swimmer; it seldom ventures on to dry land.

Dinichthys

The name “terrible fish” reveals that this fearsome creature is not actually a dinosaur but a huge, primitive fish. Its great mouth can swallow man-sized prey on a natural attack roll of 20.

Mosasaurus

The mosasaurus is a marine lizard, with species such as platecarpus and plotosaurus. This reptile breathes air like a crocodile. It travels very slowly on land, but its flippers move it with ease and grace through the water. The mosasaurus preys on all forms of marine animals – its powerful jaws can crack shell or bone easily.

Much of the length of the mosasaurus is due to the larger number of its vertebrae, numbering over 100 in some species.

Nothosaurus

The nothosaurus is a particularly aggressive marine dinosaur – another ichthyosaur. It dwells mostly in tropical seas, always seeking prey in the water when not sunning itself on rocks in between hunts. It lumbers on its flippers when on land but swims rapidly. When in a frenzy it can lash at its victim with huge fore flippers, but its usual attack is a darting bite, as its long neck moves its head at great speed.

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 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.

Temnodontosaurus

This monster is a huge ichthysaur or “fish lizard”. Although it is not a dinosaur, it thrives in the same marine habitats as do mosasaurs, for example – its young are born live at sea, and it must come to the surface to breathe.

Its speed and ferocity allow it to compete fearlessly for choice prey with any creature. When in a feeding frenzy, it strikes with its powerful tail, inflicting damage on any creature behind it that is struck by this lashing.

Dinosaure aquatique