A little more detail: I remember the page about raptors having all of them illustrated over the top of each other, if that makes sense. So, the smallest of the species would be in the bottom corner, and then the next largest would behind that one, and so on and so forth until the largest one was in the back and took up more space on the pages.

I used to repeatedly check this book out from my elementary school library in the early 1990s. It was an educational book full of realistic depictions of dinosaurs. I remember two specific pages: one was all different species of raptors, and one was all different species of ocean dinosaurs. There was no story, it seemed more like an encyclopedia. I imagine it was published in the late 80s or early 90s. Thanks!

Educational dinosaur encyclopedia