This second edition is substantially revised, including extensive re-analysis of the most recent work on Cenozoic forms. Edition 1st ed. The majority of planktonic foraminifera are found in the globigerinina, a lineage within the rotaliida. This second edition is substantially revised, including extensive re-analysis of the most recent work on Cenozoic forms. tions. Paleocene-Eocene stratigraphy of the Indus Basin is revised and a modern stratigraphic nomenclature is presented. 4 Evolution and Geological Significance of Larger Benthic Foraminifera The first attempts to taxonomically classify Foraminifera placed them within the genus Nautilus, a member of the phylum Mollusca. Purchase Evolution and Geological Significance of Larger Benthic Foraminifera, Volume 21 - 1st Edition. Assessing the Ability of Zonal δ 18 O Contrast in Benthic Foraminifera to Reconstruct Deglacial Evolution of Atlantic Meridional Overturning Circulation Sifan Gu. Andrew Henderson works in the oil and gas industry as a Senior Stratigrapher for Robertson, a CGG Company. Evolution and Geological Significance of Larger Benthic Foraminifera is a comprehensive reference work on the larger benthic foraminifera. Image credit: Shutterstock/greenbutterfly. DNA was extracted from freshly collected specimens by using either the guanidine lysis buffer or a DNeasy Plant Minikit (Qiagen, Basel). For example, the interpretation of some Upper Vendian microfossils as agglutinated foraminifers (42) seems accurate in view of our study. Phylogenetic relationships among 55 Foraminifera inferred from partial small subunit rDNA sequences, including representatives of all groups shown in Fig. Foraminifera are separated into two groups following their life strategy, namely the planktonic and the benthic foraminifera. There is no clear separation between thecate and agglutinated taxa, and several lineages include both types of wall. Author information: (1)Département de Zoologie et Biologie Animale, Université de Genève, CH-1224 Chêne-Bougeries, Switzerland. A distinctive radiation, supported by high bootstrap values (80–98%), includes a few unilocular lineages characterized by a wide variety of morphotypes, as well as the clade that contains all multilocular species having agglutinated (Textulariida) and calcareous perforate (Rotaliida) tests. To distinguish between the two the foraminifera need to be studied in thin section. 1). Because of the high divergence of the SSU rDNA sequences in the three latter groups, 500 unambiguously aligned positions were kept in phylogenetic analyses for this dataset. AF381179–AF381183, AJ307741–AJ307772, AJ311212–AJ311219, AJ312436, AJ315955, AJ317881, AJ317980, AJ317983–AJ317989, AJ318011–AJ318227, AJ504681–AJ504690, AJ514835–AJ514865, X86093, X86095, Z69610, and Z69613). Evolution and Geological Significance of Larger Benthic Foraminifera is a unique, comprehensive reference work on the larger benthic foraminifera. Series Developments in palaeontology and stratigraphy ; 21. This second edition is substantially revised, including We do not capture any email address. The naked species (Reticulomyxa filosa) examined here, as well as the putative naked species detected in freshwater environmental DNA samples, branch in several independent clades. Her main research interests focus on the evolution and ecology of benthic foraminifera and their geochemical applications for reconstructing ocean circulation and climate change over the Cretaceous and Cenozoic. Comparatively little is known about the evolution of noncalcareous unilocular Foraminifera, whose thecate (organic-walled) or agglutinated tests are rarely encountered in the fossil record since the Early Cambrian (7, 8).