Smilodon populator Variant:Primed Polacanthus had a large and

Polacanthus had a large and robust body

suggesting they had excellent vision in water

Although not as agile as some of the more advanced dinosaurs

Although it is not known for certain whether Charonosaurus was an aquatic or terrestrial animal

Smilodon populator Variant:Primed Polacanthus had a large andSmilodon (S. populator "sabertooth"), also known as the South American sabertooth tiger; It was an extinct carnivorous species of felid that inhabited South America and belonging to the Machairodontinae subfamily that lived during the Upper Pleistocene, until its extinction about 10,000 years ago. Smilodonn populator is the largest species of its genus, measuring up to 1. 2 meters in height and 2. 3 meters in length, and can weigh up to 400 kilos.