Rugotruncana subcircumnodifer ( 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 subcircumnodifer ( Gandolfi 1955)

Figs. 1 : 34-36; Figs. 2 : 32-34; Figs. 9 : 25-27; Figs. 15 : 4- 12

1955 Globotruncana (Rugoglobigerina) circumnodifer subcircumnodifer Gandolfi , p.44, pl.2, fig.8

1967 Rugotruncana subcircumnodifer (Gandolfi) Pessagno , p.369, pl.62, fig.14 16, pl.74, fig.1-3 Dimensions: D = 0,32-0,36 mm; d = 0,27-0,32 mm; Remarks: Gandolfi (1955) shows: " the test is slightly convex, chambers are inflated more pronounced in the umbilical side the faintly beaded double keel is not exactly in the middle of the chambers.........test is rough especially in the early stage ". All these features defined clear this taxon.

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

Specimens: LPB.IV. 12439

Figures

Fig. 1: 1-3 Rugoglobigerina subbotinae Maslakova 1978, Maastrichtian, Țâța Valley, Pietrosița, LPB.IV. 12446; 4 Rugoglobigerina macrocephalla Brönnimann 1952, Maastrichtian, Tata Valley-Pietrositza, LPB.IV. 12413; 5-6 Rugoglobigerina rotundata Brönnimann, 1952, Maastrichtian, Țâța Valley, Pietrosița, LPB.IV.12416; 7-15 Rugoglobigerina subbotinae Maslakova 1978, Maastrichtian, Țâța Valley, Pietrosița, LPB.IV.12419; 16-27 Rugotruncana subrugosa (Gadolfi 1955), Maastrichtian, Țâța Valley, Pietrosița, LPB.IV.12420; 28-33 Globotruncanella subpetaloidea (Gandolfi 1955), Maastrichtian, Țâța Valley, LPB.IV. 12442; 34-36 Rugotruncana subcircumnodifer (Gandolfi 1955), Maastrichtian, Țâța Valley, LPB.IV. 12439 (All specimens x 90).

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. 9: 1-6 Globotruncanella havanensis (Voorwjik 1937) emend. Brönnimann & Brown 1955, Maastrichtian, Țâța Valley, PietroȘița, LPB.IV.12429; 7-9 Globotruncanella petaloidea (Gandolfi 1955), Maastrichtian, Țâța Valley, PietroȘița, L.P.B.IV.12428; 10-12 Globotruncanella pshadae (Keller 1946), Maastrichtian, Țâța Valley, PietroȘița, L.P.B.IV.12427; 13-21 Rugotruncana subpenny (Gandolfi, 1955), Maastrichtian, Țâța Valley, PietroȘița, L.P.B.IV.12426; 22-24 Rugotruncana subloetterli (Gandolfi 1955), Maastrichtian, Țâța Valley, PietroȘița, L.P.B.IV.12423; 25-27 Rugotruncana subcircumnodifer (Gandolfi 1955), Maastrichtian, Țâța Valley, PietroȘița, L.P.B.IV.12439 (All specimens x 90).

Fig. 15: 1-3 Globigerinella glaessneri (Gandolfi 1955), Maastrichtian, Țâța Valley, PietroȘița, LPB.IV.12418; 4-12 Rugotruncana subcircumnodifer (Gandolfi 1955), Maastrichtian, Țâța Valley, PietroȘița, LPB.IV.12439; 13-24 Globotruncanella sarmientoi (Gandolfi 1955), Maastrichtian, Țâța Valley, PietroȘița, LPB.IV.12448; 25-27 Rugoglobigerina kingi Trujillo 1960, Maastrichtian, Țâța Valley, PietroȘița, LPB.IV.12450 (All specimens x 90).