Robert Carroll, in his book Vertebrate Paleontology and Evolution (1988), replaces Pseudosuchia with Rauisuchia, Ornithosuchia, and the traditional category incertae sedis (of uncertain placement), while retaining the other three suborders.
Robert Carroll's book "Vertebrate Paleontology and Evolution" (1988) proposed a revised classification of early archosaurs by replacing Pseudosuchia with Rauisuchia, Ornithosuchia, and retaining the traditional category incertae sedis.