Resserella elegantuloides ( Kozłowski, 1929 )

Baliński, Andrzej, 2012, The brachiopod succession through the Silurian-Devonian boundary beds at Dnistrove, Podolia, Ukraine, Acta Palaeontologica Polonica 57 (4), pp. 897-924 : 908-909

Resserella elegantuloides ( Kozłowski, 1929)

Fig. 7A .

1929 Dalmanella elegantuloides sp. n.; Kozłowski 1929: 63–67, pl. 2: 1–16; figs. 9A, 10, 11.

1985 Resserella elegantuloides ( Kozłowski, 1929) ; Nikiforova et al. 1985: 10–12, pl. 1: 1–3 [full synonymy herein].

2003 Resserella elegantuloides ( Kozłowski, 1929) ; Brock 2003: 118– 119; pls. 7: 13–14, 8: 4–5.

Material.—Three complete shells, 19 ventral and 7 dorsal valves. The species was found 5.5 m above the S–D boundary (beds 47–48); single specimens were also recovered 0.4 and 0.95 m above the boundary (beds −4 and 1.5).

Remarks.—The species was described in great detail, both externally and internally, by Kozłowski (1929). Nikiforova et al. (1985) selected a neotype from the Mytkiv Beds of Verkhnyakovtsy. The present specimens from Dnistrove fully agree externally with Resserella elegantuloides described by those authors.

Stratigraphic and geographic range.—The species is reported from the Khudykivtsi and Mytkiv beds of the Borshchiv Horizon. It was also found in the lower Devonian of Nevada, USA (Johnson 1973: 1019, pl. 1: 16–20; Johnson et al. 1973: 17–18, pl. 14: 121) and New South Wales, Australia ( Savage 1974: 16, 17; pl. 1: 25–29; Brock 2003: 118–119; pls. 7: 13–14, 8: 4–5).

Figures

Fig. 7. Orthide brachiopods from the Silurian–Devonian boundary beds at Dnistrove (Podolia, Ukraine). A. Resserella elegantuloides (Kozłowski, 1929), complete shell ZPAL Bp. 56/41 in dorsal (A1), ventral (A2), lateral (A3), posterior (A4), and anterior (A5) views. B. Dalejina frequens (Kozłowski, 1929), complete shell ZPAL Bp. 56/35 in dorsal (B1), ventral (B2), lateral (B3), posterior (B4), and anterior (B5) views. C. Talentella crassiformis (Kozłowski, 1929), articulated shell ZPAL Bp. 56/30 in dorsal (C1), ventral (C2), lateral (C3), posterior (C4), and anterior (C5) views. Beds 47–48. Scale bars 5 mm.