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
Otherwise Known as Sheila the Great work with Sheila because of her fear of the water Judy Blume dedicated the book to her father and her mother. The post-2002 reprints of this book have some lines edited and a bit of new content added to update the technology use in it (for instance, record players are replaced with CD players, and the camp's copier keeps malfunctioning, which is why Sheila must use a mimeograph machine, whereas the original had them already still using their mimeograph machine and not having a copier yet). Judy Blume's website Otherwise Known as Sheila the Great Otherwise Known as Sheila the