In the aftermath of Permian-Triassic boundary mass-extinction: new ostracod (Crustacea) genus and species from South Tibet Author Forel, Marie-Béatrice Author Crasquin, Sylvie text Geodiversitas 2011 2011-06-30 33 2 247 263 http://dx.doi.org/10.5252/g2011n2a3 journal article 7715 10.5252/g2011n2a3 52b03d71-cefc-44da-9b75-e7cc270ed280 1638-9395 4597109 790AC12D-10AA-4480-AD5B-BAA1A543C552 Liuzhinia larmae Forel n. sp. ( Fig. 6 C-G) TYPE MATERIAL . — Holotype : one complete carapace (P6M2638; Fig. 6C ); paratype : one complete carapace (P6M2639; Fig. 6D ). FIG. 4. — Specimens from Tulong section ( Tibet ), stored at the Pierre et Marie Curie University Collections (Paris, France): A , Bairdia fengshanensis Crasquin-Soleau, 2006 , right lateral view of a complete carapace (P6M2608); B , Bairdia sp. C, right lateral view of a complete carapace (P6M2609); C , Acratia ? sp.B, right lateral view of a complete carapace (P6M2610); D , Bairdia anisicaforma Monostori, 1994 , right lateral view of a complete carapace (P6M2611); E , Bairdia sp. F, right lateral view of a complete carapace (P6M2612); F , Bairdia anisica Kozur, 1970 , right lateral view of a complete carapace (P6M2613); G , Bairdia ? sp. D, left lateral view of a complete carapace (P6M2614); H , Bairdia cf. finalyi ( Méhes, 1911 ) , right lateral view of a broken carapace (P6M2620); I -M , Petasobairdia collini Forel n. sp. ; I , right lateral view of a complete carapace (P6M2617); J , paratype (P6M2619), right lateral view of a nearly complete carapace (dorsal part of left valve is missing); K , right lateral view of a nearly complete carapace (P6M2613); L , right lateral view of a complete carapace (P6M2618); M , holotype (P6M2615), right lateral view of a complete carapace. Scale bars: 100 μm. ETYMOLOGY. — Dedicated to Kriemhilde Larm, personal dedication. MATERIAL EXAMINED. — 32 complete carapaces and 1 isolated valve. DIMENSIONS. — L = 350-570 µm ; H = 175-290 µm . Holotype : L = 406 µm ; H = 200 µm . Paratype : L = 388 µm ; H = 206 µm . TYPE HORIZON . — Sample 06Ti08, Unit IIIb, Tulong Formation, Smithian, Lower Triassic. TYPE LOCALITY . — Tulong section, Southern Tibet . OCCURRENCE. — Tulong section, Southern Tibet . Samples 06Ti06, 06Ti08, 06Ti13, 06Ti14 and 06Ti32, units III to VI , Smithian-Anisian, Early-Middle Triassic. DIAGNOSIS. — A Liuzhinia species with long and straight dorsal border; AB and PB with small radius of curvature. DESCRIPTION DB long and straight; AB with relatively small radius of curvature; VB long and gently convex on both valves; PB with small radius of curvature; AB and PB gently compressed laterally at the extremities of the carapace; maximum of H located in front of L anterior third; H/L = 0.51 REMARKS Liuzhinia larmae Forel n. sp. is very close from Liuzhinia antalyaensis Crasquin-Soleau, 2004 from the early Induan of the Western Taurus ( Turkey , Crasquin-Soleau et al. 2004), Guangxi , South China (Crasquin-Soleau et al. 2006) and Southern Alps, Italy ( Crasquin et al. 2008 ). Here, the radius of curvature of AB is smaller, the DB is shorter, the H/L ratio is smaller and the thickness is less important in posterior part of the carapace. NB: in Crasquin-Soleau et al. (2004: 286), there is a printing mistake in the diagnosis of Liuzhinia antalyaensis . It should be as follows: DIAGNOSIS. — Species of Liuzhinia with long straight dorsal border and maximum of height located in the anterior third.