A scale model of Baluchitherium aka Paraceratherium It was an early relative of the rhinoceros which lived in Asia about 20 - 30 mya, and was possibly the largest land mammal ever to have lived. (photo: Neil Kelly)
Anomalocaridids (model pictured) grew a third longer and survived 30 million years longer than thought. Christine Dell'Amore National Geographic News Published May 27, 2011 Fossils of a meter-long (3.3-foot) prehistoric ocean predator have been found in southeastern Morocco. The specimens include the largest yet of its kind and suggests the spiny, somewhat shrimplike beasts dominated pre-dinosaur seas for millions of years longer than thought.