... by Quinqueloculina milletti, Arenoparrella mexicana, Pararotalia cananeiaensis, Ammonia beccarii, Buliminella elegantissima, Elphidium sp., Elphidium excavatum, Elphidium gunteri and Elphidium poeyanum . In mesohaline and polyhaline waters of the central part, the organic-carbon-rich silt and clay contain Facies 4...

...F ig . 4. – Oxide composition of selected minerals on foraminifera grouped with a hierarchical analysis in 5 mineral poles. The foraminifera (Jmac = Jadammina macrescens , Deddy = Deuterammina eddystonensis , Amex = Arenoparrella mexicana ) and the sample source of the analyzed mineral were...

... and fine- to medium-grained sands. Biotope 1b is found in the mid-estuarine environment and has a maximum water depth of 4 m. It is distinguished by an abundance of Arenoparrella mexicana. Biotope 2 occurs within the subtidal lower estuarine environment with a maximum water depth of 4 m...

... macrescens and Miliammina fusca indicate lower salinities (<15 psu). Good indicators for higher salinities are Haplophragmoides wilberti (10–20 psu) and Arenoparrella mexicana (10–20 psu and 28–30 psu). Ammonia spp. prefer salinities >15 psu and Elphidium spp. >20 psu. Ammonia tepida , Helenina...

... was Arenoparrella mexicana . The most abundant species in the high marshes was Entzia macrescens . The upland–marsh transition zones were dominated by Trochamminita irregularis and Pseudothurammina limnetis . Canonical correspondence analysis was applied to assess the relationship between a priori defined biofacies...

... generally more likely to be preserved in the lower marsh than the higher marsh at low- and intermediate-salinity sites. The opposite pattern was evident at the high-salinity site but this may be due to the low numbers of deep infaunal specimens recovered. Arenoparrella mexicana, Haplophragmoides wilberti...

... of variance (ANOVA) was used to investigate the differences in mean proportions for six species ( Miliammina fusca, Trochammina inflata, Arenoparrella mexicana, Tiphotrocha comprimata, Haplophragmoides wilberti and Jadammina macrescens ) selected because of their importance in distinguishing assemblages...

... (SHECSI)] were limited to these. The low abundance of foraminifera along Transect C2 might be due to erosion opposite the jetty. Cluster analysis revealed three zones. Zone I, above 0.22 m above annual mean sea level (AMSL), is co-dominated by Arenoparrella mexicana and Trochammina inflata . Species...

..., and furthermore, they accurately represent the subsurface assemblages that are the focus of paleoenvironmental reconstructions. Further analyses of the dead assemblages indicate a vertical zonation of foraminifera within the intertidal zone. Zone D-Ia is dominated by agglutinated foraminifera Arenoparrella...

..., as were Polysaccammina hyperhalina and Miliammina fusca in the Guaratuba intertidal zone. In Saquarema, the intertidal zone is marked by T. macrescens, and Centropyxis aculeata predominates in Jacarepiá. The subtidal zone in Paraná contains Arenoparrella mexicana, Tiphotrocha comprimata, Trochammina...