FIGURE 3. A, C in Middle Permian (Roadian) gastropods from the Khao Khad Formation, Central Thailand: Implications for palaeogeography of the Indochina Terrane

FIGURE 3. A, C, Limestone outcrops exposed as the lapiés at the west foot hill of Erawan hill; hammer in the right side for scale (C). B, D, Weathered surface limestones represented by bioclastic packstone as an example for preservation that the studied materials were collected; scale bars represent: 10 cm (B); 2 cm (D).