Apatosaurus "Apatosaurus" may have been more solitary than other Morrison Formation dinosaurs. Fossils of the genus have only been found in the upper levels of the formation. Those of "Apatosaurus ajax" are known exclusively from the upper Brushy Basin Member, about 152–151 mya. "A.louisae" fossils are rare, known only from one site in the upper Brushy Basin Member; they date to the late Kimmeridgian stage, about 151mya. Additional "Apatosaurus" remains are known from similarly aged or slightly younger rocks, but they have not been identified as any particular species, and thus may instead belong to "Brontosaurus". The Morrison Formation records a
Formerly Known that Christian hip-hop is not lame." Hill considered "Let There be Light", featuring Lecrae, a personal favorite. Wildes listed "Fools Gold", featuring Sho Baraka and Swoope, and "Michael Jackson", featuring Thi'sl, Rich Perez, R-Swift, and Bubba Watson, as the two songs which he liked the best. "Michael Jackson" sampled a line from Kanye West and was based around the concept of Christians being former sinners who were "bad real bad Michael Jackson". Wildes noted the humorous intent of the appearance of golfer Bubba Watson and stated that it "closes out a fine project". Formerly Known Formerly Known is the second