When I first moved to Maryland, there was a short series of essentially "unexplained" Richter 2-3 earthquakes in eastern Howard County. The geologists cited a fault system that runs through Howard County and northern Baltimore County. I wonder if the fault could be related to the southern Chesapeake Bay impact site. Probably not, but a possibility, I guess.
The animals of this time look stranger than the Dinos, because we have been shown a lot about the great reptiles. The predators at that time were called creodonts, now totally extinct except for their descendants the whales. They looks something like current carnivores, since they filled the same niches, but are not related. The carnivores existed in hiding, looking rather like a cross between foxes and coyotes. All current carnivores descended from them.
The largest land animal that has lived since the Dinosaurs was a really weird animal called the 'Beast of Baluchistan', discovered in that province which neighbors afghanistan. It has no living relatives. All in all a really strange period, much less familiar than the time of the Dinosaurs, despite being closer in time, and including animals much more closely related to our current fauna.
About 35 million years ago—the dinosaurs are dead, but the Appalachian Mountains are still covered in tropical rain forests—a rock from space that was more than a mile wide and moving at supersonic speed crashed into the Atlantic Ocean off North America.
Supersonic? Now there's an understatement. We're almost certainly talking about an impact speed in the tens of miles per second compared to around 1,100 feet per second for the speed of sound.
Presumably what the writer meant by 'supersonic' was "really, really fast..."
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