Figure 4: Correlation of the Honggou magnetostratigraphy with the geomagnetic polarity timescale.

Sites and main components of fossil mammals found along the section are plotted on the right side of the stratigraphic column for general age constraint. The sandstone samples and paleocurrent indicators also show in the Figure. GPTS, Geomagnetic polarity time scale; Pc, Paleocurrent indicators; VGP, virtual geomagnetic polarity.