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Cassigerinella Regularis
Cassigerinella is an extinct genus of foraminiferaPokorný, V. (1955). Cassigerinella boudecensis n. gen., n. sp. (Foraminifera, Protozoa) z oligocénu zdánického flyse. Vestnik Ustredního Ústavu Geologického, 30: 136-140 belonging to the family Cassigerinellidae of the superfamily Guembelitrioidea and the suborder Globigerinina.Cassigerinella World Foraminifera Database, accessed 27 November 2018 Its type species is '' Cassigerinella chipolensis''. Species Species in ''Cassigerinella'' include: * '' Cassigerinella chipol ...[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bartonian
The Bartonian is, in the ICS's geologic time scale, a stage or age in the middle Eocene Epoch or Series. The Bartonian Age spans the time between . It is preceded by the Lutetian and is followed by the Priabonian Age. Stratigraphic definition The Bartonian Stage was introduced by Swiss stratigrapher Karl Mayer-Eymar in 1857. The name derives from the coastal village Barton-on-Sea (part of New Milton) in southern England. The Barton Group, a lithostratigraphic unit from the south English Hampshire Basin, is of Bartonian age. The distinction between group and stage was made in the second part of the 20th century, when stratigraphers saw the need to distinguish between litho- and chronostratigraphy. The base of the Bartonian is at the first appearance of the calcareous nanoplankton species ''Reticulofenestra reticulata''. In 2009, an official reference profile (GSSP) for the base of the Bartonian had not yet been established. The top of the Bartonian Stage (the base of the Pria ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cassigerinellidae
Cassigerinellidae is an extinct family of foraminifera belonging to the superfamily Guembelitrioidea and the suborder Globigerinina The Globigerinina is a suborder of foraminiferans that are found as marine plankton. They produce hyaline calcareous tests, and are known as fossils from the Jurassic period onwards. The group has included more than 100 genera and over 400 spec .... Genera It includes the genera '' Cassigerinella'' and '' Riveroinella''. References External links * ForaminiferidaChapter 18: Taxonomy, Biostratigraph, and Phylogeny Of Oligocene Cassigerinella, Published: January 31, 2018 Foraminifera families Globigerinina {{Foraminifera-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cassigerinella Spinata
Cassigerinella is an extinct genus of foraminiferaPokorný, V. (1955). Cassigerinella boudecensis n. gen., n. sp. (Foraminifera, Protozoa) z oligocénu zdánického flyse. Vestnik Ustredního Ústavu Geologického, 30: 136-140 belonging to the family Cassigerinellidae Cassigerinellidae is an extinct family of foraminifera belonging to the superfamily Guembelitrioidea and the suborder Globigerinina The Globigerinina is a suborder of foraminiferans that are found as marine plankton. They produce hyaline cal ... of the superfamily Guembelitrioidea and the suborder Globigerinina.Cassigerinella World Foraminifera Database, accessed 27 November 2018 Its type species is '' Cassigerinella chipol ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cassigerinella Regularis
Cassigerinella is an extinct genus of foraminiferaPokorný, V. (1955). Cassigerinella boudecensis n. gen., n. sp. (Foraminifera, Protozoa) z oligocénu zdánického flyse. Vestnik Ustredního Ústavu Geologického, 30: 136-140 belonging to the family Cassigerinellidae of the superfamily Guembelitrioidea and the suborder Globigerinina.Cassigerinella World Foraminifera Database, accessed 27 November 2018 Its type species is '' Cassigerinella chipolensis''. Species Species in ''Cassigerinella'' include: * '' Cassigerinella chipol ...[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cassigerinella Martinezpicoi
Cassigerinella is an extinct genus of foraminiferaPokorný, V. (1955). Cassigerinella boudecensis n. gen., n. sp. (Foraminifera, Protozoa) z oligocénu zdánického flyse. Vestnik Ustredního Ústavu Geologického, 30: 136-140 belonging to the family Cassigerinellidae of the superfamily Guembelitrioidea and the suborder Globigerinina.Cassigerinella World Foraminifera Database, accessed 27 November 2018 Its type species is '' Cassigerinella chipolensis''. Species Species in ''Cassigerinella'' include: * '' Cassigerinella chipol ...[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cassigerinella Eocaenica
Cassigerinella is an extinct genus of foraminiferaPokorný, V. (1955). Cassigerinella boudecensis n. gen., n. sp. (Foraminifera, Protozoa) z oligocénu zdánického flyse. Vestnik Ustredního Ústavu Geologického, 30: 136-140 belonging to the family Cassigerinellidae of the superfamily Guembelitrioidea and the suborder Globigerinina.Cassigerinella World Foraminifera Database, accessed 27 November 2018 Its type species is '' Cassigerinella chipolensis''. Species Species in ''Cassigerinella'' include: * '' Cassigerinella chipol ...[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cassigerinella Chipolensis
''Cassigerinella chipolensis'' is an extinct species of foraminifera belonging to the genus ''Cassigerinella'', the family Cassigerinellidae Cassigerinellidae is an extinct family of foraminifera belonging to the superfamily Guembelitrioidea and the suborder Globigerinina The Globigerinina is a suborder of foraminiferans that are found as marine plankton. They produce hyaline cal ... and the suborder Globigerinina.Cassigerinella chipolensis World Foraminifera Database, accessed 27 November 2018 References Foraminifera species Globigerinina {{Foraminifera-stub ...[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Foraminifera
Foraminifera (; Latin for "hole bearers"; informally called "forams") are single-celled organisms, members of a phylum or class of amoeboid protists characterized by streaming granular Ectoplasm (cell biology), ectoplasm for catching food and other uses; and commonly an external shell (called a "Test (biology), test") of diverse forms and materials. Tests of chitin (found in some simple genera, and Textularia in particular) are believed to be the most primitive type. Most foraminifera are marine, the majority of which live on or within the seafloor sediment (i.e., are benthos, benthic), while a smaller number float in the water column at various depths (i.e., are planktonic), which belong to the suborder Globigerinina. Fewer are known from freshwater or brackish conditions, and some very few (nonaquatic) soil species have been identified through molecular analysis of small subunit ribosomal DNA. Foraminifera typically produce a test (biology), test, or shell, which can have eithe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Serravallian
The Serravallian is, in the geologic timescale, an List of time periods, age or a stage (stratigraphy), stage in the middle Miocene epoch (geology), Epoch/series (stratigraphy), Series, which spans the time between 13.82 annum, Ma and 11.63 Ma (million years ago). The Serravallian follows the Langhian and is followed by the Tortonian. It overlaps with the middle of the Astaracian European Land Mammal Mega Zone, the upper Barstovian and lower Clarendonian North American Land Mammal Ages and the Laventan and lower Mayoan South American Land Mammal Ages. It is also coeval with the Sarmatian and upper Badenian Stages of the Paratethys time scale of Central and eastern Europe. Definition The Serravallian Stage was introduced in stratigraphy by the Italy, Italian geologist Lorenzo Pareto in 1865. It was named after the town of Serravalle Scrivia in northern Italy. The base of the Serravallian is at the first occurrence of fossils of the Plankton#Size groups, nanoplankton species ''Sph ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Globigerinina
The Globigerinina is a suborder of foraminiferans that are found as marine plankton. They produce hyaline calcareous tests, and are known as fossils from the Jurassic period onwards. The group has included more than 100 genera and over 400 species, of which about 30 species are extant. One of the most important genera is ''Globigerina''; vast areas of the ocean floor are covered with ''Globigerina'' ooze (named by Murray and Renard in 1873), dominated by the shells of planktonic forms. Description Globigerinids are characterized by distinctly perforate planispiral or trochospiral tests composed of lamellar radial hyaline (glassy) calcite, with typically globular chambers and single interiomarginal aperture. Some however have multiple or auxiliary apertures, and in some the aperture is areal or terminal in location. Some, also, have keels, reinforcing thickenings along exterior angles. An adaptation to the planktonic habit is the development of long narrow spines that support ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rotaliida
The Rotaliida are an order of Foraminifera, characterized by multilocular tests (shells) composed of bilamellar perforate hyaline lamellar calcite that may be optically radial or granular. In form, rotaliid tests are typically enrolled, but may be reduced to biserial or uniserial, or may be encrusting with proliferated chambers. Chambers may be simple or subdivided by secondary partitions; the surface is smooth, papillate, costate, striate, or cancellate; the aperture is simple or with an internal toothplate, entosolenian tube, or hemicylindrical structure; it may have an internal canal or stolen systems. Rotaliids are primarily oceanic benthos, although some are common in shallower estuarine waters. They also include many important fossils, such as the nummulitids. Taxonomy The Rotaliida are now divided into the following superfamilies: [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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