Ostracods (Crustacea) of the Early-Middle Permian (Cisarulian-Guadalupian) from Central Thailand (Indochina Block): Part II, Orders Podocopida, Platycopida and Myodocopida Author Chitnarin, Anisong Author Crasquin, Sylvie Author Forel, Marie-Béatrice Author Tepnarong, Prachya text Geodiversitas 2017 2017-12-29 39 4 651 690 http://dx.doi.org/10.5252/g2017n4a1 journal article 10.5252/g2017n4a1 1638-9395 4536112 urn:lsid:zoobank.org:pub:DB464417-3EA1-4C4E-9C03-624C1627969C Bairdia guangxiensis Guan, 1978 ( Fig. 9 A-C) Bairdia guangxiensis Guan in Guan et al. , 1978: 154 , pl. 38, figs 3-4. — Chen & Shi 1982: 122 , pl. 5, fig. 17. — Chen & Bao 1986: 114 , pl.3, figs 7-8. — Shi & Chen 1987: 31 , pl. 3, figs 1-9; 2002: 67, pl. 5, figs 1-9, pl. 28, figs 1-2. MATERIAL EXAMINED. — Two complete and 14 incomplete carapaces. OCCURRENCES. — Wugang, Hunan Province , Early Permian ( Guan et al. 1978 ); Nantong section, ( Chen & Shi 1982 ); Well- Bao-1, Chihsia Limestone, Jiangsu Province , Early Permian ( Chen & Bao 1986 ); Meishan section, Changxing, Zhejiang , South China , latest Permian ( Shi & Chen 1987 ) ; Matan and Pingding sections, Guangxi , South China , Late Permian ( Shi & Chen 2002 ) ; samples 07 PB06-3 , 07 PB07-4 and 07 PB08-2 , Ban Naen Sawan II section, Tak Fa Formation , Phetchabun Province , Middle Permian , Central Thailand . DIMENSIONS. — H = 0.55-0.84 mm , L = 0.82-1.18 mm , H/L = 0.66-0.71. REMARKS Bairdia guangxiensis can be easily recognized by presence of ventral beak-like lateral inflations on both valves and flat ventral area. Small differences can be recognized among our specimens; for example, DB of LV is convex unlike the flat DB of those described from Late Permian of Guangxi ( Shi & Chen 2002 : pl. 5, figs 1 and 9), and are of medium size.