Bairdia cf. bassoni Crasquin, 2010

Chitnarin, Anisong, Crasquin, Sylvie, Forel, Marie-Béatrice & Tepnarong, Prachya, 2017, Ostracods (Crustacea) of the Early-Middle Permian (Cisarulian-Guadalupian) from Central Thailand (Indochina Block): Part II, Orders Podocopida, Platycopida and Myodocopida, Geodiversitas 39 (4), pp. 651-690 : 662

Bairdia cf. bassoni Crasquin, 2010

( Fig. 9 E-F)

Bairdia cf. bassoni Crasquin, 2010: 340 , fig. 7Y, Z, C’-F’.

MATERIAL EXAMINED. — Eight complete carapaces.

OCCURRENCES. — Sample 07 PB 03-3, Khao Kana section, Pha Nok Khao Formation, Phetchabun province, Early Permian, Central Thailand.

DIMENSIONS. — H = 0.364 -0.529 mm, L = 0.617 -0.930 mm, H/L = 0.56-0.58.

REMARKS

The specimens attributed to Bairdia cf. bassoni Crasquin, 2010 are characterized by regularly arched DB, maximal H located at mid L, and both ends compressed laterally; however, AB and PB are smaller than those of B. bassoni Crasquin, 2010 ( Crasquin et al. 2010a) from the latest Permian of Meishan section, Eastern China. The overlap at DB in our specimens is stronger.

Figures

FIG. 9. — Ostracods from Indochina Block, Central Thailand. All specimens are stored at the Suranaree University of Technology Collections (Nakhon Ratchasima, Thailand) numbers SUT-09-xxxx. All the specimens are represented by complete carapaces. A-C, Bairdia guangxiensis Guan, 1978; A, right lateral view, SUT-09-2207, sample 07PB07-4; B, left lateral view, SUT-09-2208, sample 07PB06-3; C, ventral view, SUT-09-2213, sample 07PB07-3. D, Bairdia cf. zhongyingensis Wang, 1978 sensu Chen & Bao, 1986; right lateral view, SUT-09-2339, sample 07LB05-A2; E, F, Bairdia bassoni Crasquin, 2010; E, right lateral view, SUT-09-2117,sample 07PB03-3; F, right lateral view,SUT-09-2118,sample 07PB03-3;G-J, Bairdia urodeloformis Chen, 1987;G, right lateral view,SUT-09-2332, sample 08LB01-1; H, right lateral view, SUT-09-2325, sample 07LB05-5; I, right lateral view, SUT-09-2335, sample 08PB05-3; J, right lateral view, SUT-09-2338, sample 07LB05-5; K-M, Bairdia cf. urodeloformis Chen, 1987; K, right lateral view, SUT-09-2151, sample 07LB05-B2; L, right lateral view, SUT-09-2152, sample 07LB05-3; M, right lateral view, SUT-09-2156, sample 08LO02-2; N-P, Bairdia sp. A; N, right lateral view, SUT-09-2285, sample 07PB04-2; O, right lateral view, SUT-09-2291, sample 07PB04-2; P, right lateral view, SUT-09-2290, sample 07PB04-2. Scale bars: 100 µm.