[eartrumpet]

I didn’t know diamonds contained microfossils of plankton and the like. Crude oil does.

Does that mean the macro-fossils in the La Brea Tar Pits formed the Tar Pits?

[thackney]

No.

We are talking about deep underground. What was in the sediment when it was laid down.

Not after faults and uprising pushed it back up to surface.