Argentinosaurus is a herbivorous sauropod dinosaur genus that was quite possibly the largest, heaviest land animal that ever lived.
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It developed on the island continent of South America during the middle of the Cretaceous Period (around 100 million years ago), after all of its more familiar Laurasian Jurassic kin – like Apatosaurus – had long disappeared.
Argentinosaurus’ measure between 115 to 150 feet long, stand about 50 feet tall, and weigh about 80 tons.
|Hit Dice||32d8+323 (467 hp)|
|Speed||30 ft. (6 squares)|
|Armor Class||22 (-8 size, +20 natural), touch 2, flat-footed 22|
|Attack||Tail slam +23 melee (4d6+25 plus thunderous snap) or stamp (10d8+25)|
|Full Attack||Tail slam +23 melee (4d6+25 plus thunderous snap) or stamp (10d8+25)|
|Space/Reach||80 ft./40 ft.|
|Special Attacks||Thunderous snap, trample 8d8+25|
|Special Qualities||Low-Light Vision, Scent|
|Saves||Fort +33, Ref +10, Will +12|
|Abilities||Strength 44, Dexterity 10, Constitution 30, Intelligence 1, Wisdom 14, Charisma 10|
|Skills||Listen +23, Spot +22|
|Feats||Alertness, Awesome Blow, Diehard, Endurance, Great Fortitude, Improved Bull Rush, Power Attack, Toughness|
|Climate/Terrain||Warm forests, plains and hills|
|Advancement||33-78 HD (Colossal)|
Thunderous Snap (Ex): Although an argentinosaurus is ponderous, its whip-like tail can move faster than sound. Any creature struck by an argentinosaurus’ tail slam must make a Fortitude save (DC 36) or be stunned for 1d4 rounds and deafened for 1d4 minutes. On a successful save, the creature is merely deafened for 1d4 minutes. The save DC is Constitution based.
Trample (Ex): An argentinosaurus can literally run over any creatures in its way that are of Gargantuan or smaller size. Creatures trampled must make a Reflex save (DC 43 half) or take 8d8+25 damage. The save DC is Strength-based.