Or "reptilians" either, so David Icke should probably calm down.
I would stick with the scientists title for their report: "Civil Engineering works of an Unknown Ancient Civilization", and would take a more conservative approach to the age.
Why? Because I do not see convincing evidence in the articles that the scientists themselves are sticking to the 120 million years date.
They identified the shells to be 120 million years old. I think we can find some of those these days too.
They seem to have identified some materials in the rock to be 120 million years old, but the articles don't seem to me specific enough to say they identified the manufacture date of the piece to be the same. If they did, I would expect a decent explanation on how do you identify the manufacture date of each material, and when were they put together.
I'm perfectly willing to believe some unknown civilization created this, as unlikely as it seems without our "great technological achievements", but my first hypothesis would be a human civilization, even if that means one thousands of years old.
Each human civilization in a time of relative prosperity has historically underestimated both its peers and its predecessors achievements. It would not be the first time we encounter a relatively advanced technological accomplishment and judge it would have been "impossible" for X or Y people to create it; traditionally we then turn to the supernatural, the divine or the "alternative" to explain it.
In the 20th century that means aliens, but before we had Atlantis, Lemuria, the Lost Tribes of Israel, the Ancient Aryan People, the Masters From The World Below, etcetera, etcetera.
We have used them to explain pyramids, complex structures, Chinese materials found in America, American materials found in Egypt, and other stuff. The idea that someone found an alternative way to do what we have just learned to do now, thousands of years earlier, is always unthinkable.
Today, however, we have reasonable scientists arguing that yes, the Incas may have discovered flight before us, the Chinese were indeed travelling all over the seas, the American civilizations may have traded with Asia, Africa and Europe, and ancient peoples everywhere had very interesting ways of moving rocks with ropes, leather and wood, we had not thought of before.
All of that without God, aliens, the Chosen Race or the demi-human civilizations of yore showing them the way.
Basicly, that people with more limited means may have been smarter than us, long ago.
But unless I see conclusive evidence that the researchers themselves believe, from their priviledged access to and knowledge of the evidence, that this thing is 120 million years old, I will not assume they do.
And unless this researchers provide convincing evidence to the scientific community and the public in general that they are being reasonable and scientific about this, I will not assume this thing is 120 million years old.
It seems to me that some reporter saw the 120 million years old, heard the words "the creator" (of the artifact), and went nuts during editing mode, so I don't trust the context for now.
After what they did with the Qunram texts controversy or other examples I would be not very surprised. Heck, I once saw a "journalist" manage to get a poor scientist to confirm that "it might be possible" the Shoemaker-Levy comet crashing on Jupiter "represents a danger to Earth" through able interruptions, editing, and abuse of the line "we have no idea what exactly will happen".
Freedom is the freedom to say 2+2=4, everything else follows...