Bairdia deducta deducta Zalányi, 1974

Hemmati, Soheil, Ghaderi, Abbas, Crasquin, Sylvie & Ashouri, Ali Reza, 2024, Update and observations on the extraction of ostracods (Crustacea) from the Permian hard carbonate rocks of Iran, Geodiversitas 46 (5), pp. 119-133 : 127

Bairdia deducta deducta Zalányi, 1974

( Fig. 5A1-A6 )

Bairdia deducta deducta Zalányi, 1974: 196-197 , pl. 12, figs 1a-c. — Crasquin-Soleau & Baud 1998: pl. 8, figs 10-13, 16. — Chitnarin et al. 2017: 666-667, fig. 11J-L.

Cryptobairdia deducta deducta – Kozur 1985a: pl. 6, fig. 2.

MATERIAL EXAMINED. — Six complete carapaces, MNHN.F. F72157- F72162 .

OCCURRENCES. — Lopingian, Nagyvisnýo Formation, Bükk Mountains, Hungary ( Kozur 1985a); Late Guadalupian-Early Lopingian Episkopi Formation, Hydra Island, Greece ( Crasquin-Soleau & Baud 1998); Cisuralian, Tham Nam Maholan section, Nam Maholan Formation, Loei Province, northeast Thailand; Guadalupian, Ban Naen Sawan I section, Pha Nok Khao Formation, Phetchabun Province, central Thailand, Late Guadalupian Khao Som Phot section, Tak Fa Formation, Lopburi Province, central Thailand, ( Chitnarin et al. 2017). Khachik Formation Unit VI (samples A. 188, AH. 197, A.204, and A. 210), Guadalupian, Ali-Bashi section, Iran (this study).

DIMENSIONS. — L = 99.3-108.7 µm; H = 56.1-65.9 µm; H/L = 1.64-1.77.

DESCRIPTION

Carapace subtriangular; DB and VB irregularly arched; PDB, DB and ADB straight at RV and convex at RV; AB and PB with very small radius of curvature. Strong overlap of LV on RV particularly on all the dorsal part; flattening of AB and dorso-median part of the valves; thickening of the carapace in ventral part.

Figures

FIG. 5. — Ostracods from the Khachik beds of Ali-Bashi section, NW Iran, extracted by CH2O2 technique (A1-J2) and by CH3COOH technique (K1-K3): A1- A6, Bairdia deducta deducta (Zalányi, 1974); A1, right lateral view, sample A. 197, MNHN.F.F72157; A2-A4, right lateral view, sample A. 210, MNHN.F.F72158- F72160; A5, right lateral view, sample A. 189, MNHN.F.F72161; A6, right lateral view, sample A. 207, MNHN.F.F72162; B1-B4, Bairdia hungarica Zalányi, 1974; B1, left lateral view,sample A.189,MNHN.F.F72163;B2, right lateral view, sample A.189, MNHN.F.F72164; B3, left lateral view,sample A.170, MNHN.F.F72165; B4, right lateral view, sample A. 176, MNHN.F.F72166; C1-C4, Bairdia sp.; C1, left lateral view, sample A. 189, MNHN.F.F72167; C2, right lateral view, sample A. 189, MNHN.F.F72168; C3, left lateral view,sample A.170, MNHN.F.F72169; C4, right lateral view, sample A. 176, MNHN.F.F72170; D1-D6, Fabalicypris parva Wang, 1978; D1, right lateral view, sample A. 194, MNHN.F.F72171; D2, right lateral view, sample A. 151, MNHN.F.F72172; D3, right lateral view, sample A. 158, MNHN.F.F72173; D4, right lateral view, sample A. 192, MNHN.F.F72174; D5, D6, right lateral view, sample A. 210, MNHN.F.F72175, F72176; E, Fabalicypris sp. 1., right lateral view, sample A. 207, MNHN.F.F72177; F, Fabalicypris sp. 2., right lateral view, sample A. 210, MNHN.F.F72178; G1-G3, Hollinella (Hollinella) herrickana (Girty, 1909);G1, left lateral view, sample A. 15, MNHN.F.F72179; G2, left lateral view, sample A. 238, MNHN.F.F72180; G3, right lateral view, sample