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.