Planulina ornata (d'Orbigny), a coarsely perforate species of foraminifera having a low trochospiral test, was recovered attached to phosphatic hardgrounds from the lower oxygen-minimum zone off Peru. Above the base of individual pores are calcified, perforate sieve plates, the largest so far described. Structure of the pores suggests a possible association with mitochondria and respiratory fun...

Abstract Globuligerina glinskikhae nov. sp. Gradstein & Waskowska and waskowskae are new species of Jurassic planktonic foraminifera from the Middle Dagestan Poland. G. with its remarkable ‘protoglobigerine’ test may be an early evolutionary offshoot oxfordiana (Grigelis). It index taxon for upper Bajocian through Bathonian strata in Eastern Europe Southwest Asia, might recognizable also th...

18 surface sediment samples collected from a north-south transect along the Indian Ocean have been analyzed for planktonic Foraminifera content. Among the other planktonic foraminiferal faunas, Globigerina bulloides was present substantially in all samples. Census data of G. bulloides were measured for different parameters (average size, mean proloculus size, coiling direction, and number of ch...

To assess the influence of orbital-scale variations on late Oligocene to early Miocene climate and ocean chemistry, high-resolution (~5 kyr) benthic foraminiferal carbon and oxygen isotope and percent coarse fraction time series were constructed for Ocean Drilling Program site 929 on Ceara Rise in the western equatorial Atlantic. These time series exhibit pervasive lowto high-frequency variabil...