OKLAHOMA CITY -- Paleontologists reconstructing the bones of a newly discovered giant dinosaur were flabbergasted when they found the remains of what appears to be a space alien in its belly!

The man-like skeleton found among the bones of the 60-foot-tall Sauroposeidon is that of a slightly built creature with a disproportionately large, bulbous skull and almond-shaped eye sockets.

SKULL appears to be that of a space alien. It was found among the remains of a dinosaur.

"The Sauroposeidon dates back 110 million years -- eons before the first man walked the Earth," says Dr. David Posvby, leader of a government team that is studying the possible E.T. remains.

"I can't tell you yet exactly what that thing the dinosaur swallowed was, but I can tell you one thing positively. It is not a human and it is certainly not any kind of ape."

The recent discovery of the previously unknown Sauroposeidon in Oklahoma made headlines worldwide. The 60-ton, giraffe-necked creature was one of the largest dinosaurs ever to walk the Earth, so heavy that its footsteps are believed to have caused minor earthquakes. But when paleontologists were painstakingly reassembling its skeleton, they were puzzled to find a group of slender bones that didn't fit in -- including an intact rib cage the size of a human child's and a skull that looked like something out of a science fiction movie.

Government scientists got wind of the find and whisked the man-like remains to Dr. Posvby's Washington lab for further research. The University of Oklahoma scientists who found the dinosaur say they are under "strict orders" not to say anything to the press about finding an E.T.

And Dr. Posvby himself has thus far released only very limited information. "The creature found in the dinosaur stood about 4 feet tall and probably walked erect," he said.

"The size of the braincase indicates it was intelligent, perhaps more so than Homo sapiens."

The find has sent shockwaves through the scientific community, for several reasons. For one thing, it was initially believed that Sauroposeidon was a herbivore, not a meat-eater. "It's possible that this little guy got too close to the dinosaur, perhaps studying it while standing on a branch. The Sauroposeidon may have gulped him down without realizing it," one dinosaur expert speculated. "Remember, this was an animal that ate about a ton of plants per day."

Also, until now most UFO researchers have put the likely arrival date of aliens at around 1947. The new find proves that visitors from space were on Earth in prehistoric times, experts say.