Fig. 18 in Brachiopods and their response to the Early-Middle Frasnian biogeochemical perturbations on the South Polish carbonate shelf

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.