Tar Pit - comics - was created in 2001.
Tar Pit
the tar pit
Land of the Lost - 1974 Tar Pit - 2.1 was released on: USA: 6 September 1975
A tar pit, or more accurately known as an asphalt pit or asphalt lake, is a geological occurrence where subterranean bitumen leaks to the surface, creating a large area of natural asphalt.[1][2]
Zorro - 1997 Tar Pit Terror 1-7 was released on: USA: 1 November 1997
Land of the Lost - 1974 Tar Pit 2-1 was released on: USA: 6 September 1975
The cast of The Tar Pit - 2010 includes: Alan Collett as Scott Mia Eden as Wendy Jessica Houghton Jim Nieb as Ex-Boyfriend
The tar pits are natural and not built. Millions of years ago various dinosaurs came along and got stuck in the pit. Today we find their bones and put them on display.
The unfortunate dinosaurs became inextricably mired in the tar pit.
simple the tar would be covered by leaves and a mammoth for example would die in the trap and rot which would atrract predators and the would get stuck in the tar
You don't sink into the Earth because, in most places, the Earth's surface is stron enough to support your weight. You would sink if you were on quicksand, the tar in a tar pit, or in water, as examples.