Significant Miocene larger foraminifera from South Central Java

The Gunung Sewu area of South Central Java, Indonesia during Mid Miocene, Langhian-Serravallian (Tf1-Tf2), was deposited in a large area of warm, very shallow-marine water. Coralline algae and abundant larger benthic foraminifera dominate the carbonate lithologies. Larger benthic foraminifera from previously unstudied sections in South Central Java are described and figured. They have led to an understanding of sequence stratigraphic and facies relationship of Miocene carbonates in Indonesia. Thirteen larger foraminifera species are described and illustrated. A detailed biostratigraphical studies of The phylogeny Katacycloclypeus annulatus - K. martini and the gradual evolution from Austrotrillina asmariensis into A. howchini are recognised. Analysis of the larger benthic foraminifera has allowed accurate dating of the carbonate sections studied using the East Indian Letter Classification

Diagnostic First and Last Occurrences of Mesozoic and Cenozoic Planktonic Foraminifera

The diagnostic first and last occurrences of Cretaceous, Paleogene and Neogene planktonic foraminifera species are given, and have been calibrated against the most recent biostratigraphical time scale and radio-isotope data

Biostratigraphic and Geological Significance of Planktonic Foraminifera

The role of fossil planktonic foraminifera as markers for biostratigraphical zonation and correlation underpins most drilling of marine sedimentary sequences and is key to hydrocarbon exploration. Biostratigraphic and Geological Significance of Planktonic Foraminifera unifies existing biostratigraphic schemes and provides an improved correlation reflecting regional biogeographies. It presents a comprehensive analysis of existing data on fossil planktonic foraminifera genera and their phylogenetic evolution in time and space. Coverage includes presentation and discussion of rarely studied thin sections of planktonic foraminifera, allowing for new developments in dating planktonic foraminifera in carbonates and expanding their usefulness in hydrocarbon exploration

Genotypes of Septatrocholina and Alzonorbitopsella, two new Jurassic foraminifera: subsequent designations

When the genera Septatrocholina BouDagher-Fadel and Banner and Alzonorbitopsella BouDagher-Fadel were erected (BouDagher-Fadel 2008, pp. 161; 175), the genotypes Septatrocholina banneri and Alzonorbitopsella arabia, respectively, were described and figured, but through an oversight the holotypes and paratypes were not identified among the illustrated specimens. The type specimens are here subsequently designated, in accordance with ICZN 1999, article 69, and are further described. The type specimen slides are deposited in the invertebrate collections of the Natural History Museum, London

Loftusia persica: an Eocene Lazarus occurrence?

A specimen of Loftusia persica Brady is described that contains as a part of its inner test a specimen of Turborotalia pomeroli (Toumarkine and Both), which is a very distinctive Middle to Late Eocene planktonic foraminifera. Although originally described as a "Tertiary" form, more recently Loftusia persica has been considered to be restricted to the Maastrichtian. A number of scenarios that could have led to the inclusion of an Eocene planktonic foraminifera deep within the test of a specimen of Loftusia are discussed, and it is concluded that the most probable interpretation is that Loftusia persica reappeared as a "Lazarus" species in the Eocene having survived the Cretaceous-Paleocene mass extinction, but was eventually driven to extinction by the orogeny that led to the formation of the Zagros Mountains