as the phenomenon referred to as phylotypic stage.

History

Among the pioneering zoologists, Linnaeus identified two body plans outside the vertebrates; Cuvier identified three; and Haeckel had four, as well as the Protista with eight more, for a total of twelve. For comparison, the number of phyla recognised by modern zoologists has risen to 36.

Linnaeus, 1735

In his 1735 book Systema Naturæ,

1.Previous
3.Next