Spinatrypa semilukiana Ljaschenko, 1959

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 : 669

Spinatrypa semilukiana Ljaschenko, 1959

Fig. 18E, F .

1959 Spinatrypa semilukiana Ljaschenko ; Ljaschenko 1959: 174, pl. 51: 1–2; pl. 55: 1v; pl. 56: 1g.

1979 Spinatrypa semilukiana Ljaschenko, 1959 ; Baliński 1979: 60–61, pl. 13: 5, 7–10; pl. 14: 6.

Material.—Five complete shells and two fragments from northern quarry at Dębnik in addition to the collection described earlier from the same locality (see Baliński 1979).

Remarks.—This species was described from the Dębnik anticline by Baliński (1979).

Occurrence.— Spinatrypa semilukiana occurs in the Middle Frasnian of the East European Platform (Ljaschenko 1959). The present collection comes from the quarry mentioned above (bed 49 and loose block). Earlier the species was recovered by Baliński (1979) in the Old Tumidalski’s quarry and in loose blocks near the northern quarry at village of Dębnik ( Cyrtospirifer bisellatus local brachiopod Zone).

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.