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 Polycope sp. D ( Fig. 27 K-L) MATERIAL EXAMINED. — Three incomplete carapaces. TABLE 3. — Relationships between the Early to Middle Permian ostracods from Indochina block of central Thailand and other known Permian localities. Column abbreviations: 1 , Bradfield 1935 , Cooper 1946 , Cordell 1952 , Western USA, upper Carboniferous; 2 , Knight 1928 , Missouri, USA, upper Carboniferous; 3 , Kellett 1934 , Kansas, USA, upper Carboniferous to lower Permian; 4 , Chen 1958 , Nanking, Eastern China, lower Permian; 5 , Guan et al. 1978 , Hunan, South China, lower Permian; 6 , Chen & Bao 1986 , Jiangsu, Eastern China, lower Permian; 7 , Kozur 1985a , Bükk Mts, Hungary, upper Permian; 8 , Crasquin et al. 1999, Sultanate Oman, middle Permian; 9 , Crasquin-Soleau & Baud 1998, Hydra Island, Greece, upper Permian; 10 , Ishizaki 1964 , Miyagi, Northeast Japan, middle Permian; 11 , Lethiers et al. 1989 , Jebel Tebaga, Tunisia, middle Pemian; 12 , Chen & Shi 1982 , Jiangsu, China, upper Permian; 13 , Shi & Chen 1987 , Zhejiang, Eastern China, upper Permian; 14 , Shi & Chen 2002 , Guanxi, South China, upper Permian; 15 , Crasquin-Soleau et al. 2007, Tibet, China, upper Permian; 16 , Crasquin et al. 2008b , Alps, Italy, Permian-Triassic; 17 , Crasquin et al. 2010b , Vardar,NW Serbia, upper Permian; 18 , Crasquin et al. 2010a , Zhejiang, Eastern China,upper Permian; 19 , Forel 2012 , Guizhou, South China, upper Permian; 20 , Zazzali et al. 2015 , Sichuan, South China, upper Permian. Other abbreviations: SI , Simpson Index; na , data not available.

Age of the	Palaeobigeographic relationships of
studied	Early and Middle Permian ostracods from
sections	Indochina block	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18 19		20
middle Permian	Microcheilinella shicheni Crasquin, 2010 Bairdia guangxiensis Guan, 1978 Bairdiacypris deloi Bradfield, 1935	– – –	– – –	– – –	■ – –	■ ■ –	– ■ –	– – –	– – –	– – ■	– – ■	– – ■	– ■ –	■ ■ –	– ■ –	– – –	– – –	– – –	■ – –	– – –	– – –
lower Permian	Samarella viscusforma Chitnarin, 2012 Liuzhinia praeantalayaensis Forel, 2010 Bairdia pierrevalentini Crasquin, 2010 Bairdia deweveri Crasquin, 2010 Hollinella ( H. ) martensiformis Crasquin, 2010 Cyathus elliptica Shi, 1987 Bairdia broutini Crasquin, 2010 Bairdia urodeloformis Chen, 1987 Paraparchites chenshii Crasquin, 2010 Petasobairdia subnantongensis Chen, 1987 Acratia chongpani Chitnarin , n. sp Acratia mongkoli Chitnarin , n. sp. Hollinella ( H. ) herrickana (Girty, 1909) Sulcella mesopermiana Kozur, 1985 Sulcella suprapermiana Kozur, 1985 Bairdia deducta deducta Zalanyi, 1974	– – – – – – – – – – – – – – – –	– – – – – – – – – – – – – – – –	– – – – – – – – – – – – – – – –	– – – – – – – – – – – – – – – –	– – – – – – – – – – – – – – – –	– – – – – – – – – – – – – – – –	– – – – – – – – – – – – – ■ ■ ■	– – – – – – – – – – – – ■ – ■ –	– – – – – – – – – – ■ ■ – – ■ –	– – – – – – – – – – – – – – – –	– – – – – – – – – – – – ■ – – –	– – – – – – – – ■ ■ – – – – – –	– – – – – ■ ■ ■ ■ ■ – – – – – –	– – – – – – ■ ■ ■ ■ – – – – – –	– – – – ■ – – – – – – – – – – –	– – – ■ – – – – – – – – – – ■ –	– – – ■ – – – – – – – – – – ■ –	– – ■ ■ – ■ ■ ■ ■ ■ – – – – – –	– ■ – – – – – – – – – – – – – –	■ – – – ■ – – – – – ■ – – – – –
sensu Kozur (1985a) Cyathus caperata ( Guan, 1978 ) Bairdia menardensis Harlton, 1929	– –	– –	– –	– ■	– –	■ –	– –	– –	– –	– –	– –	– –	■ –	– –	– –	– –	– –	■ –	– –	– –
sensu Chen (1958) Bairdia altiarcus Chen, 1958 Lobobairdia ventriconcava ( Chen, 1958 ) Bairdia beedei Ulrich & Bassler, 1906	– – –	– – –	– – –	■ ■ ■	– – –	– ■ –	– – –	– – –	– – –	– – –	– – –	– – –	– – –	■ ■ –	– – –	■ – –	– – –	– – –	– – –	– – –
sensu Chen (1958) Bairdia piscariformis Chen, 1958 Bairdia lungtanensis Chen, 1958 Basslerella tota Chen & Bao, 1986 Bairdia piscariformis Chen, 1958 Bairdia trianguliformis Chen, 1958 Bairdiacypris longirobusta Chen, 1958 Cryptobairdia seminalis ( Knight, 1928 ) Bairdiacypris deloi Bradfield, 1935	– – – – – – – ■	– – – – – – ■ –	– – – – – – ■ –	■ ■ ■ ■ ■ ■ – –	– – – – – – – –	– – ■ – – – – –	– – – – – – – –	– – – – – – – –	– – ■ – – – – ■	– – – – – – – ■	– – – – – – – ■	■ – – ■ ■ ■ ■ –	– – – – – ■ – –	– – – – ■ ■ – –	– – ■ – – – – –	– – – – – – – –	– – – – – – – –	■ – – ■ – – – –	– – ■ – – – – –	– – – – – – – –
Number of species in the area where they are less: n1		na	na	23	29	na	63	130	35	66	22	14	60	87	94	53	62	38	98 112 130
number of common species: C		1	1	1	11	2	4	2	2	4	1	2	8	9	9	2	3	2	11	1	3
SI = C/n1	na	na 0.04 0.38 na 0.06 0.02 0.06 0.06 0.05 0.14 0.13 0.10 0.10 0.04 0.05 0.05 0.11 0.01 0.02

OCCURRENCES. — Sample 07 PB 06-5, Ban Naen Sawan II section, Tak Fa Formation, Phetchabun Province , central Thailand , Middle Permian. REMARKS Polycope sp. D is attributed to the genus Polycope because of its subcircular carapace with fine ornamentation on carapace surface.