This clade also includes the Polygalaceae , Surianaceae and Quillajaceae families and its origins date back 94 to 89 million years .
It started its diversification some 79 to 74 million years ago .
This clade also includes the Polygalaceae , Surianaceae and Quillajaceae families and its origins date back 94 to 89 million years , although it started its diversification some 79 to 74 million years ago .