Benthic Foraminifers in Mesozoic and Cenozoic Sediments of the Southwestern Atlantic As an Indicator of Paleoenvironment, Deep Sea Drilling Project Leg 71

Upper Cretaceous Benthic Foraminifers and Paleoenvironments, Southern Kerguelen Plateau, Indian Ocean

“…Taylor (1964) documented marginal marine assemblages from the Santonian of Victoria (Australia) and his analysis was of value for the material recovered from Hole 748C, which may have been deposited in a comparable environment. Basov and Krasheninnikov (1983) reported in detail on the faunas from the South Atlantic Ocean, and their Santonian and younger sections contained calcareous faunas comparable with those recorded here. The faunas seem generally to represent deeper water environments with a higher content of characteristic agglutinated species.…”

“…This species is similar in general appearance and chamber details to Conorboides umiatensis (Tappan) described from the Albian of Alaska, and probably is very closely related. This genus previously was recorded from Lower Cretaceous sediments in the Southern Hemisphere by Basov and Krasheninnikov (1983), but this appears to be the first record of the genus from sediments as young as the Upper Cretaceous. The growth form of this species and C. umiatensis are identical.…”

Benthic foraminifera, ostracods and radiolarians from the Lachman Crags Member (Santa Marta Formation), upper Santonian-lower Campanian (Upper Cretaceous) of James Ross Island, Antarctica

“…When the generic and specifi c composition of the studied benthic foraminiferal fauna is evaluated, a low degree of endemism can be detected, with the dominance of cosmopolitan taxa such as Gyroidinoides globosus and Gavelinella sandidgei (cf. Sliter, 1977;Basov & Krasheninnikov, 1983;Huber, 1988Huber, , 1992Alegret & Thomas, 2001;Ceten et al, 2011).…”

“…Stratigraphic range. Late Cretaceous (Basov & Krasheninnikov, 1983 Gyroidinoides Brotzen, 1942 Gyroidinoides globosus (Hagenow, 1842) emend. Alegret & Thomas, 2001 (Figure 4I-N) 1842 Nonionina globosa Hagenow, p. 574.…”

Aptian-Albian Foraminifers from Site 766, Cuvier Abyssal Plain, and Comparison with Coeval Faunas from the Australian Region

“…The species classed as Serovαinα and included in the Bagginidae are similar to mid-Cretaceous types referred elsewhere to Vαlvulineriα or Gyroidinoides (e.g., Ludbrook, 1966;Dailey, 1973;Scheibnerová, , 1978aScheibnerová, , 1978bSliter, 1977Sliter, , 1986Gradstein, 1978;Basov et al, 1979;Dupeuble, 1979;Basov and Krasheninnikov, 1983;Moullade, 1984;Magniez and Sigal, 1985). However, the species lack an open umbilicus and well-developed umbilical flaps, features typical of the optically radial Vαlvulineriα and the optically granular Gyroidinoides.…”