Archaeoglobigerina blowi Pessagno 1967

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 : 78

Archaeoglobigerina blowi Pessagno 1967

Figs. 4 : 25-30; Figs. 8 : 7-9: Figs. 13 : 7-12; Figs. 14 : 4-12

1967 Archaeoglobigerina blowi Pessagno , pl. 316, pl. 59, figs. 1-10

Dimensions: D = 0,39- 0,34 mm; d = 0,29- 0,24 mm; g = 0,17- 0,14 mm

Remarks: Specimens from the Maastrichtian of Țâța Valley correspond with Pesanno's species: " Test trochoid, lobulat periphrerally; chambers spheroidal.....umbilicus medium sized....periphery occasionally with weakly double keel....the surface smooth through or somewhat rugose on the early chambers.... A.blowi is closely relat- ed to A. cretacea (d'Orbigny) . It differs from the latter species by possessing a more spherical and inflated chambers and by having a markedly lobulated periphery...."\ in the Pessagno's opinion this taxon gave rise to Rugoglobigerina rugosa .

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

Specimens: L.P.B.IV. 12449

Figures

Fig. 4: 1-9 Rugoglobigerina subbotinae Maslakova 1978, Maastrichtian, Țâța Valley, PietroȘița, LPB.IV. 12446; 10-15 Globotruncanella havanensis (Voorwjik 1937), Maastrichtian, Țâța Valley, PietroȘița, LPB.IV. 12429; 16-21 Globotruncanella pshadae (Keller 1946), Maastrichtian, Țâța Valley, PietroȘița, L.P.B.IV.12427; 22-24, 31-36 Globotruncanella petaloidea (Gandolfi 1955), Maastrichtian, Țâța Valley, PietroȘița, LPB.IV.12428; 25-30 Archaeoglobigerina blowi Pessagno 1967, Maastrichtian, Țâța Valley, PietroȘița, LPB.IV.12449 (All specimens x 90).

Fig. 8: 1-3 Globotruncanella coarctata (Bolli 1957), Maastrichtian, Țâța Valley, PietroȘița, L.P.B.IV.12437; 4-6 Globigerinella glaessneri (Gandolfi 1955), Maastrichtian, Țâța Valley, PietroȘița, LPB.IV.12418; 7-9 Archaeoglobigerina blowi Pessagno 1967, Maastrichtian, Țâța Valley, PietroȘița, LPB.IV.12449; 10-12 Rugotruncana subpenny (Gandolfi l955), Maastrichtian, Țâța Valley, PietroȘița, L.P.B.IV.12426; 13-18 Rugoglobigerina kelleri (Subbotina 1953), Maastrichtian, Țâța Valley, PietroȘița, LPB.IV.12451; 19-21 Rugotruncana tilevi Brönnimannn & Brown 1955, Maastrichtian, Țâța Valley, PietroȘița, LPB.IV.12436; 22-27 Abatomphalus pessagnoi (Longoria 1973), Maastrichtian, Țâța Valley, PietroȘița, LPB.IV.12434 (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).

Fig. 14: 1-3 Globotruncanella sarmientoi (Gandolfi 1955), Maastrichtian, Țâța Valley, PietroȘița, LPB.IV.12448; 4-12 Archaeoglobigerina blowi (Pessagno 1967), Maastrichtian, Țâța Valley, PietroȘița, LPB.IV.12449; 13-15 Rugoglobigerina pustulata Brönnimann 1952, Maastrichtian, Țâța Valley, PietroȘița, LPB.IV.12415; 16-24 Rugoglobigerina ordinaria (Subbotina 1953), Maastrichtian, Țâța Valley, PietroȘița, LPB.IV.12446; 25-29 Rugoglobigrerina kelleri (Subbotina 1953 Maastrichtian, Țâța Valley, PietroȘița, LPB.IV.12451; 30-31 Rugoglobigerina rotundata Brönnimann 1952 Maastrichtian, Țâța Valley, PietroȘița, LPB.IV.12416 (All specimens x 90).