I mentioned a few posts ago that Matt and I are working on a redescription of AMNH 675, a sauropod specimen referred by Mook (1917) to “ Apatosaurus ” minimus , but which everyone knows is not Apatosaurus . We plan to share the illustrations from this in-progress paper as we prepare them, so here is perhaps the key one: Sacrum and fused ilia of AMNH 675, “Apatosaurus” minimus. Top row: left lateral and right lateral;