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known from fossil remains in Gobi Desert deposits
indicating that it fed mainly on vegetation
a huge prehistoric crocodile known as a "Meat Crocodile"
which were abundant in its environment
This mammal is an example of the mesonychians
Helicoprion Escala:1:35 known from fossil remains inHelicoprion (H. ergassaminon, `Sierra en espiral) es un gnero de peces cartilaginosos extintos que se asemejaban a los tiburones en su apariencia y comportamiento. Este gnero emergi por primera vez en los ocanos del Carbonfero Superior, hace aproximadamente 290 millones de aos, y sobrevivi a la extincin masiva del Prmico Trisico, que ocurri hace unos 252 millones de aos. Sin embargo, finalmente se extingui en el Trisico Superior, hace aproximadamente
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