Oh no. We had a solid surface for about 3.8 billion-ish years. And life for about 3.5. The 300 million years I was talking about is that intermediate period between those two dates when the planet's surface was chemically extremely active but didn't really have "life", just lots and lots of chemical precursors.
Civilization can develop and possibly fall extremely quickly. Human civilization has only been around for about 12000 years. So it is not completely unreasonable to say that perhaps a civilization developed and completely fell, but it did so before developing metallurgy or advanced technology. Think of something like the Mayans. Or the Indus Valley Civilization
https://en.wikipedia.org/wiki/Indus_Valley_Civilisation which were in many ways extremely advanced, yet developed very little in the way of metalworking.
If such an event would have occurred like 250 million years ago (Dino civilization!) there would be very little left of them that wasn't eroded by time. What we would mostly have to go on are fossilized tools
and most importantly geological evidence.
You see, civilization to emerge it requires population concentrations, that require agriculture, that requires earthworks, irrigation, deforestation, concentration of livestock etc. all those end up leaving impossible to erase signs.