FIGURE 14. A–I in Middle Permian (Roadian) gastropods from the Khao Khad Formation, Central Thailand: Implications for palaeogeography of the Indochina Terrane

FIGURE 14. A–I, Worthenia humiligrada sp. nov. A–D, ESKU-19-LP 22. E–F, ESKU-19-LP 33. G–H, ESKU-19-LP 23. I, ESKU-19-LP 34. J–N, Worthenia cf. pagoda Mansuy, 1912, J, ESKU-19-LP 17. K–N, ESKU-19-LP 66. O–S, Worthenia sp., ESKU-19-LP 88. Scale bars represent: 2 mm (A, B, G, H, I, K, L, O); 1 mm (C, D, J, M, N, P–S); 5 mm (E, F).