Crocodile From Hell, East African Version

Again from Discovery News, it turns out that there was a horned crocodile that lived around the time of the Australopithecines and likely ate more than a few of them for lunch. Jennifer Viegas writes:

Remains of the enormous horned croc, named Crocodylus thorbjarnarsoni, were unearthed in East Africa. The impressive aquatic reptile exceeded 27 feet long and is described in the latest Journal of Vertebrate Paleontology.

The croc was the dominant predator of its ecosystem, so there is little doubt that it preyed upon our distant ancestors, especially since remains of Australopithecus (a now-extinct genus of hominids) were found nearby.

These relatively tiny individuals would have had no choice but to enter the crocodile's territory for much needed water.

These early hominins had to contend with large cats on the savanna as well so survival was never guaranteed.

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Turtle From Hell

What is it with the Cerrajon Formation in Colombia? First we had the Snake from Hell, then we had the Crocodile from Hell and now we have the Turtle from Hell. Jennifer Viegas of Discovery News writes:

Remains of an enormous turtle, which was the size of a Smart car, have been unearthed in a Colombian coal mine.

The shell alone of the 60-million-year-old turtle, Carbonemys cofrinii aka "coal turtle," is large enough to be a small swimming pool. Its skull is roughly the size of a regulation NFL football. The coal mine where it was found is part of northern Colombia's Cerrejon formation.

"We had recovered smaller turtle specimens from the site," Edwin Cadena, a North Carolina State doctoral student who discovered the turtle, said in a press release. "But after spending about four days working on uncovering the shell, I realized that this particular turtle was the biggest anyone had found in this area for this time period -- and it gave us the first evidence of giant-ism in freshwater turtles."

How nasty was this turtle in relation to modern ones?

Turtles today are usually seen slowly chewing plants, but this prehistoric species had massive, powerful jaws that would have enabled it to eat anything nearby, from mollusks to smaller turtles or even crocodiles.

Not a nice place to live, I don't think.

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Crocodile From Hell

First we had the Frog From Hell, then we had the Snake From Hell and now, it seems, that we have the Crocodile From Hell.   National Geographcic is reporting that a 60 million year-old crocodile has been found not far from Titanoboa.  Christine Dell'Amore writes:

A Colombian coal mine where scientists found the largest known snake species has offered up another gem: A new species of 20-foot-long (6-meter-long) prehistoric croc. (See pictures of Titanoboa, the biggest snake ever found.)
The 60-million-year-old Acherontisuchus guajiraensis lived alongside the snake and a bevy of other reptiles in an Amazon-like river system, which wove through one of Earth's earliest rain forests before eventually emptying into what's now the Caribbean Sea.

There are no primates alive at this point (Plesiadapis has been demoted to tree shrew). Good thing, too. I doubt this would have been a fun place to live.