Cryptobairdia Sohn, 1960

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 : 670

Genus Cryptobairdia Sohn, 1960

TYPE SPECIES. — Bairdia ventricosa Roth & Skinner, 1930 by original designation.

Cryptobairdia seminalis ( Knight, 1928) ( Fig. 15 D-F)

Bairdia seminalis Knight, 1928: 320 , pl. 43, fig.2a-d. — Kellett 1934: 127, pl. 15, fig. 2a-c.

Cryptobairdia seminalis – Sohn 1960: 51. — Chen & Shi 1982: 126, pl. 7, fig. 1-4.

MATERIAL EXAMINED. — Eight complete and two incomplete carapaces.

OCCURRENCES. — Henrietta Formation, Missouri, Middle to Late Pennsylvanian ( Knight 1928) ; Des Moines series and Neva Formation, Kansas, Early Pennsylvanian to Early Permian ( Kellett 1934) ; Nantong section, Jiangsu Province, latest Permian ( Chen & Shi 1982) ; samples 07 PB03-5 and 07 PB03-7 , Khao Kana section, Pha Nok Khao Formation, Phetchabun Province, central Thailand, Early Permian ; sample 07 PB04-2 , Nong Phai section, Pha Nok Khao Formation , Phetchabun Province, central Thailand, Early Permian .

DIMENSIONS. — H = 0.31-0.59 mm, L = 0.43-0.84 mm, H/L = 0.70-0.72.

Figures

FIG. 15. — 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, Petasobairdia subnantongensis Chen,1987;A, right lateral view, SUT-09-2578, sample 07PB05-2; B, right lateral view, SUT-09-2583, sample 07PB05-3; C, left lateral view, SUT-09-2581, sample 07PB05-2. D-F, Cryptobairdia seminalis (Knight) sensu Shi & Chen, 1982; D, right lateral view, SUT-09-2507, sample 07PB04-2; E, right lateral view, SUT-09-2508, sample 07PB04-2; F, right lateral view, SUT-09-2511, sample 07LB05-5. G, Cryptobairdia sp., right lateral view, SUT-09-2515, sample 07PB03-17. H, Fabalicypris sp. C, right lateral view, SUT-09-2527, sample 07LB07-17. I, Bairdia sp. K, right lateral view,SUT-09-2317, sample 08LO07-8. J, K, Bairdiacypris sp. D; J, right lateral view,SUT-09-2355, sample 07PB05-3; K, right lateral view, SUT-09-2353, sample 07PB05-3. L, N, O, Liuzhinia praeantalyaensis Forel, 2010; L, dorsal view, SUT-09-2099, sample 08LO02-5;N, right lateral view,SUT-09-2100,sample 08LO02-5; O, right lateral view,SUT-09-2099,sample 08LO02-5.M, Bairdiacypris longirobusta Chen,1958, right lateral view, SUT-09-2361, sample 07LB05-5. Scale bars: 100 μm.