Huge Croc Extinction Led to
Dinosaur Domination
Approximately 201 million years ago, the Triassic-Jurassic mass extinction
killed off a slew of huge predators, including hefty beasts that looked like
crocodiles and enormous armadillos, according to new research that also
suggests dinosaurs benefitted from the losses.Some of the prehistoric predators
-- animals known collectively as the early pseudosuchians -- likely preyed on
certain dinosaurs, which later evolved some of impressive characteristics of
the ancient pseudosuchians. Those included features like sturdy body armor and
strong tails for whacking enemies.
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