I have been thinking this for the last year or so, after reading about it on FR.....
It is not dinosaur dung, where the heck were they roaming off the coast of Brazil 5 to 7 miles down.
Not dinosaurs. Algae. Probably growing in very shallow water or at least in the top few feet of water. For what it is worth, the big offshore Brazilian oil discoveries are below a very thick layer of salt which probably got there through evaporation, in 5 to 7,000 feet of water and 15 to 17,000 feet below the seabed. Who says all the easy oil has been found? -- sarcasm off --
Very interesting research on algae. By weight some types can be 40+ percent oil. If there is a very long term future for biofuels for internal combustion engines, bio diesel form algae might be the ticket. Time will tell.