Liuzhinia larmae Forel, 2011

Forel, Marie-Béatrice & Crasquin, Sylvie, 2011, In the aftermath of Permian-Triassic boundary mass-extinction: new ostracod (Crustacea) genus and species from South Tibet, Geodiversitas 33 (2), pp. 247-263 : 254-256

publication ID

https://doi.org/ 10.5252/g2011n2a3

DOI

https://doi.org/10.5281/zenodo.4608673

persistent identifier

https://treatment.plazi.org/id/6A0387BA-FFCE-FFD0-8963-0506FF42F9AA

treatment provided by

Felipe

scientific name

Liuzhinia larmae Forel
status

sp. nov.

Liuzhinia larmae Forel n. sp. ( Fig. 6 View FIG C-G)

TYPE MATERIAL. — Holotype: one complete carapace (P6M2638; Fig. 6C View FIG ); paratype: one complete carapace (P6M2639; Fig. 6D View FIG ).

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.

VI

Mykotektet, National Veterinary Institute

Kingdom

Animalia

Phylum

Arthropoda

Class

Ostracoda

Order

Podocopida

Family

Bairdiidae

Genus

Liuzhinia

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