Biernatella lentiformis Baliński, 1995b

Baliński, Andrzej, 2006, Brachiopods and their response to the Early-Middle Frasnian biogeochemical perturbations on the South Polish carbonate shelf, Acta Palaeontologica Polonica 51 (4), pp. 647-678 : 670

Biernatella lentiformis Baliński, 1995b

Fig. 18A .

1995 Biernatella lentiformis sp. n.; Baliński 1995b: 142–144, figs. 8A–C, 9–11.

2003 Biernatella lentiformis Baliński, 1995b ; Baliński in Baliński et al. 2003: 221, pl. 157: 2.

Material.—Seventeen complete shells and 35 fragments of shells and single valves were recently found (beds 29–30, 48, 60, 66, 90, 92, 169, and 171 of Wietrznia Ie section) in addition to the material described earlier from the section ( Baliński 1995b: 144). Nine specimens were recovered from loose blocks found to the west and east of Wietrznia Id−W section .

Remarks.—This species was described in details by Baliński (1995b) from several localities in the Holy Cross Mountains including the Wietrznia quarry.

Occurrence.— Biernatella lentiformis was recovered in several layers in section Id−W and in vicinity of the section Ie of the Wietrznia quarry. It is very common at Józefka near Górno (type locality) where it occurs in detrital and marly limestones of early part of the Frasnian ( Palmatolepis transitans to Pa. punctata zones). It was also found at Czarnów and Dębska Wola; some uncommon and poorly preserved specimens were recovered from Kowala, Jaźwica, and Grabina quarries ( Baliński 1995b: 144, fig. 3).

Figures

Fig. 18. Athyridid and atrypid brachiopods from the Frasnian of Wietrznia and Dębnik. A. Biernatella lentiformis Baliński, 1995, ZPAL Bp 60/5, complete shell from the middle Wietrznia Beds of Wietrznia Ie in dorsal (A1), ventral (A2), lateral (A3), posterior (A4), and anterior (A5) views. B. Atryparia (Costatrypa) sp., GIUS 4−273 Wt/IM−5, from the middle Wietrznia Beds of Wietrznia Id−W in dorsal (B1), ventral (B2), and lateral (B3) views. C, D. Spinatrypina (Exatrypa) cf. explanata (Schlotheim, 1820) GIUS 4−273 Wt/IM−10 (C) and GIUS 4−273 Wt/IM−13 (D) from the middle Wietrznia Beds of Wietrznia Id−W, in dorsal (C1, D1), ventral (C2, D2), and lateral (C3, D3) views. E, F. Spinatrypa semilukiana Ljaschenko, 1959 from the Nodular Limestone (Palmatolepis hassi Zone) of Dębnik. E. Shell ZPAL Bp 60/20 in dorsal (E1) and ventral (E2) views. F. Complete shell ZPAL Bp 60/8 in dorsal (F1), ventral (F2), lateral (F3), posterior (F4), and anterior (F5) views.