Bairdiacypris combeae 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

publication ID	https://doi.org/ 10.5252/g2011n2a3
DOI	https://doi.org/10.5281/zenodo.4608669
persistent identifier	https://treatment.plazi.org/id/6A0387BA-FFCE-FFDE-8AB0-04C0FB08FB04
treatment provided by	Felipe
scientific name	Bairdiacypris combeae Forel
status	sp. nov.

Treatment

Bairdiacypris combeae Forel n. sp. ( Fig. 5 View FIG F-H)

Fabalicypris reniformis . – Hao 1992: 41, 42, pl. 1, figs 10, 11.

TYPE MATERIAL. — Holotype: one complete carapace (P6M2624; Fig. 5F View FIG ); paratype: one complete carapace (P6M2625; Fig. 5H View FIG ).

ETYMOLOGY. — Dedicated to Simone Combe, personal dedication.

MATERIAL EXAMINED. — 9 complete carapaces.

DIMENSIONS. — L = 495-770 µm; H = 245-375 µm. Holotype: L = 529 µm; H = 245 µm. Paratype: L = 754 µm; H = 360 µm.

TYPE HORIZON. — Sample 06Ti30, Unit VI, Tulong Formation, Anisian, Middle Triassic.

TYPE LOCALITY. — Tulong section, Southern Tibet .

OCCURRENCE. — Tulong section, Southern Tibet . Samples 06Ti21, 06Ti27, 06Ti28, 06Ti30 and 06Ti34, units V and VI, Spathian-Anisian, Early-Middle Triassic.

DIAGNOSIS. — A species of Bairdiacypris with maximum of height located in posterior part of the carapace, AB with small radius of curvature and maximum of curvature located high.

DESCRIPTION

DB short and straight at both valves; ADB long and straight; AB with quite small radius of curvature with maximum convexity located high (just below mid-H); VB long, convex at LV and concave at RV; PB with small radius of curvature with maximum of convexity located low (below lower ⅓ of H); carapace long (H/L = 0.46); maximum of H located in posterior third of L.

REMARKS

Bairdiacypris combeae Forel n. sp. is close to Bairdiacypris reniformis (Chen, 1958) from the Early Permian of South China. In B. combeae Forel n. sp. the radius of curvature of AB and PB are smaller.