Vinterland

By human-like I mean an intelligent creature that displays similar intelligence and ability to communicate, and maybe engages in art like music and painting. They may have achieved living in communities similar to how early humans lived and possibly established a civilization; with religious ceremonies, laws, and jobs for the community.

The time period could be any time before the human common ancestor evolved. Since mammals evolved about 200 million years ago the proposed creature could have been mammal, but could also have been a primitive Mollusk, perhaps like the Octopus, which are invertebrate and rarely leave traces in sediment. The octopus is very smart compared to other Mollusks:

The question of "If there was a community of organisms with human-like intelligence and they acheived many things, then where are the fossils?"
...is one I cannot answer. I think it may be rare for an organisms to become part of the sediment compacted with rock and fossilized. I've read articles by scientists that they have not discovered fossils of even 1% of all animals that ever lived.

There are a lot of other questions here that you and some of you may be asking: Are fossils that rare...could an invetebrate evolved to be as intelligent as us.... I am not a scientist so I will let you discuss. This can also be fun topic, but it would be great to hear it from more knowledable people.

__________________
And on we walked. Suddenly we heard a voice crying, "This is the sea. This is the deep sea. This is the vast and mighty sea." And when we reached the voice it was a man whose back was turned to the sea, and at his ear he held a shell, listening to its murmur.
And my soul said, "Let us pass on. He is the realist, who turns his back on the whole he cannot grasp, and busies himself with a fragment."
—Gibran Khalil Gibran, “The Greater Sea.”

BuckFutter

Possible? Not impossible, but highly, highly improbable. There isn't just the question of where are the fossils, but there is a complete lack of remnants of any non-human civilization. If there were Sleestaks running around back in the day, you'd think that there would be some kind of Pylon crystal matrix left that we could find. But, despite Enik's best efforts, there is nothing.

__________________
"God was invented to explain mystery. God is always invented to explain those things that you do not understand." - Richard Feynman

Vinterland

What other evidence would be left after hundreds of millions of years? I read somewhere that the Pyramids and the Great Wall of China will disappear due to natural forces in 10,000-20,000 years if not maintained.

I've never seen Land of the Lost, but a "Pylon crystal matrix" sounds fairly complex and hard to miss....

__________________
And on we walked. Suddenly we heard a voice crying, "This is the sea. This is the deep sea. This is the vast and mighty sea." And when we reached the voice it was a man whose back was turned to the sea, and at his ear he held a shell, listening to its murmur.
And my soul said, "Let us pass on. He is the realist, who turns his back on the whole he cannot grasp, and busies himself with a fragment."
—Gibran Khalil Gibran, “The Greater Sea.”

BuckFutter

Well, I figure if we are finding dinosaur bones all over the place and 1 million year old chipped rock tools in Africa then if there was a wide spread civilization there has to be something left that we would find. I imagine, though I don't know for a fact, that in hundreds of millions of years some other race will be able to find remnants of human civilization on earth, that is if the Sun doesn't gobble us up before then.

But more importantly, oh my god! How is it that you've never seen Land of the Lost? That is a damn shame.

__________________
"God was invented to explain mystery. God is always invented to explain those things that you do not understand." - Richard Feynman

Drizzling Blur

Yes.

Thats exactly why we started from 0 again.