Rugotruncana subhexacamerata Gandolfi 1955

Neagu, Theodor, 2016, Micropaleontological Study Of The Gura Beliei Red Marls Formation From The Pietroșița Area (Turonian - Maastrichtian). Part Iii Campanian-Maastrichtian Planktonic Foraminifera, Acta Palaeontologica Romaniae 12 (2), pp. 67-91 : 86

Rugotruncana subhexacamerata Gandolfi 1955

Figs. 2 : 29-31; Figs. 10 : 28-30; Figs. 13 : 4-6

1955 Globotruncana (Rugoglobigerina) hexacamerata subhexacamerata Gandolfi , p.34, pl.1, fig.11 Dimensions: D = 0,34- 0,32 mm; d = 0,34- 0,34 mm; g = 0,19 mm

Remarks: Gandolfi (1955, p.34) characterized this taxon: “ its flat to slightly convex dorsal(spiral) side, double keeled in the early stages, keels finely beaded, often not continuous way: chambers five to six on the last whorl..........Test rough in the early stage ". On our specimens on the periphery of the last chambers the keel is exactly a finely beaded often not continuous ( Figs. 10 : 28-30)

Occurrences: Țâța Valley, Pietrosița- Fieni area Stratigraphic distribution: Maastrichtian

Specimens: LPB.IV.12422; L.P.B.IV.12444

Figures

Fig. 2: 1-3 Rugoglobigerina pennyi Brönnimann 1952, Maastrichtian, Țâța Valley, Pietrosița, LPB.IV. 12417; 4-9 Rugoglobigerina subbotinae Maslakova 1978, Maastrichtian, Țâța Valley, LPB.IV. 12411; 10-12 Rugoglobigerina kingi Trujillo 1960 Maastrichtian, Țâța Valley, L.P.B.IV. 12450; 13- 15 Rugoglobigerina ordinaria (Subbotina 1953), Maastrictian, Țâța Valley, LPB.IV.12446; 16-21 Rugotruncana subglaessneri (Gandolfi 1955), Maatrichtian, Țâța Valley, PietroȘița, LPB.IV.12421, 22- 25 Rugotruncana subornata (Gandolfi 1955), Maatrichtian, Țâța Valley, LPB.IV.12440; 26-28 Rugotruncana subrugosa (Gandolfi 1955), Țâța Valley, LPB.IV. 12436; 29-31 Rugotruncana subhexacamerata (Gandolfi 1955), Maastrichtian, Țâța Valley, LPB.IV.12426; 32-34 Rugotruncana subcircumnodifer (Gandolfi 1955), Maastrichtian, Țâța Valley, LPB.IV.12431 (All specimens x 90).

Fig. 10: 1-15 Globotruncanella havanensis (Voorwjik 1937) emend. Brönnimann & Brown 1955, Maastrichtian, Țâța Valley, PietroȘița, LPB.IV.12429; 16-21 Abatomphalus sp.cf. A.intermedius, Maastrichtian, Țâța Valley, PietroȘița, LPB.IV.12434; 22- 27 Rugotruncana subglaessneri (Gandolfi 1955), Maastrichtian, Țâța Valley, PietroȘița, LPB. IV. 12421; 28-30 Rugotruncana subhexacamerata (Gandolfi 1955), Maastrichtian, Țâța Valley, PietroȘița, L.P.B. IV. 12422 (All specimens x 90).

Fig. 13: 1-3 Rugotruncana subpennyi (Gandolfi 1955), Maastrichtian, Țâța Valley, PietroȘița, LPB.IV.12426; 4-6 Rugotruncana subhexacamerata (Gandolfi 1955), Maastrichtian, Țâța Valley, PietroȘița, LPB.IV.12422; 7-12 Archaeoglobigerina blowi Pessagno 1967, Maastrichtian, Țâța Valley, PietroȘița, LPB.IV.12441; 13-15 Globotruncanella pshadae (KELLER 1946), Maastrichtian, Țâța Valley, PietroȘița, LPB.IV.12427; 16-18 Rugoglobigerina kelleri (Subbotina 1953), Maastrichtian, Țâța Valley, PietroȘița, LPB.IV.12451; 19-26 Globotruncanella sarmientoi (Gandolfi 1955), Maastrichtian, Țâța Valley, PietroȘița, LPB.IV.12448 (All specimens x 90).