Uchtospirifer nalivkini Ljaschenko, 1957

Sokiran, Elena V., 2006, Early-Middle Frasnian cyrtospiriferid brachiopods from the East European Platform, Acta Palaeontologica Polonica 51 (4), pp. 759-772 : 763-764

Uchtospirifer nalivkini Ljaschenko, 1957

Figs. 3 , 4 .

1845 Spirifer Murchisonianus de Koninck (ined.); Verneuil: 160, pl. 4: 1.

1887 Cyrtia murchisoniana (de Koninck) ; Chernyshev 1887: 77, pl. 13: 3–7.

1947 Cyrtospirifer murchisonianus (de Koninck) ; Nalivkin 1947: 116, pl. 27: 8.

1957 Uchtospirifer nalivkini sp. nov.; Ljaschenko 1957: 886, pl. 1: 1–4.

1958 Uchtospirifer nalivkini Ljaschenko, 1957 ; Ljaschenko 1958: 148, pl. 11: 1–3.

1959 Uchtospirifer nalivkini Ljaschenko, 1957 ; Ljaschenko 1959: 122, pl. 14: 1–9.

1973 Uchtospirifer nalivkini Ljaschenko, 1957 ; Ljaschenko 1973: 88, pl. 27: 1–7, pl. 51: 2.

1969 Uchtospirifer solnzevi sp. nov.; Ljaschenko 1969: 50, pl. 10: 2.

1969 Uchtospirifer concentricus sp. nov.; Ljaschenko 1969:51, pl. 10: 1.

1973 Uchtospirifer concentricus Ljaschenko, 1969 ; Ljaschenko 1973: 91, pl. 28: 1, pl. 52: 1.

1973 Uchtospirifer solnzevi Ljaschenko, 1969 ; Ljaschenko 1973: 90, pl. 28: 2, 3.

?1981 Uchtospirifer nalivkini Ljaschenko, 1957 ; Racki and Baliński 1981: 202, pl. 10: 1–5.

2003 Uchtospirifer nalivkini Ljaschenko, 1957 ; Oleneva 2003: 27, pl. 1: 3, 5, pl. 2: 3, pl. 16: 4, pl. 17: 5, pl. 18: 3, 5, 6.

2004 Uchtospirifer nalivkini Ljaschenko, 1957 ; Oleneva 2004: 178, pl. 7: 1, 8, 9, pl. 8: 1, 3.

Material.—Seventy six complete shells from George Frederik’s collection; the specimens were found at Kyn village in the Urals.

Remarks.— Racki and Balinski (1981) described Uchtospirifer nalivkini from the Late Givetian deposits of Góra Zamkowa at Chęciny, Holy Cross Mountains. The Polish specimens seem to be close internally and externally to U. nalivkini from Timan, although the micro−ornamentation of the former is not preserved.

Occurrence.—Late Givetian?–Early Frasnian, Mesotaxis falsiovalis Zone, Timan Horizon , Central Devonian Field, South Timan, and Kyn Horizon of the Urals and possibly Late Givetian of the Holy Cross Mountains, Poland.

Figures

Fig. 3. Early Frasnian cyrtospiriferd Uchtospirifer nalivkini Ljaschenko, 1957 from the Kyn Horizon, Urals. A. CNIGR 287, ventral (A1), dorsal (A2), anterior (A3), and lateral (A4) views. B. CNIGR 286, ventral (B1), dorsal (B2), anterior (B3), and lateral (B4) views. C. CNIGR 289, ventral (C1), dorsal (C2), anterior (C3), and lateral (C4) views.D. CNIGR 290, ventral (D1), dorsal (D2), anterior (D3), and lateral (D4) views; shell surface showing microornament (D5).

Fig. 4. Transverse serial sections of complete shell of Uchtospirifer nalivkini Ljaschenko, 1957, Early Frasnian, Kyn Horizon, Urals. Numbers refer to distances in mm from the top of the ventral umbo, CNIGR 1/13157.