I'm a big fan of the Megalodon, although I guess it's not really listed as a dinosaur but rather as a shark.
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I'm glad you asked.
"The megalodon, (
Carcharodon megalodon or
Carcharocles megalodon) "big tooth" in Greek, was a giant shark that lived in the prehistoric times during the late Oligocene epoch and Neogene period, approximately 25 to 1.5 million years ago, and was a
super-predator.
It was by far the largest and most powerful fish of its time. Maximum size is theorized by experts to be around 20.3 metres (67 ft) in length and 103 metric tons (114 short tons) in weight, making it the largest shark in vertebrate history and also one of the biggest hyper-carnivorous predators ever known. From scrutiny of its remains, scientists conclude that C. megalodon belongs to the order Lamniformes but its genus is disputed. Fossil evidence has revealed that C. megalodon had a cosmopolitan distribution and fed upon large marine animals."
True story!
- Wikipedia
It could practically snap the neck of your puny T-Rex in one bite, and if that ain't awesome I don't know what is.