Truncorotaloididae is a family of

foraminifera Foraminifera ( ; Latin for "hole bearers"; informally called "forams") are unicellular organism, single-celled organisms, members of a phylum or class (biology), class of Rhizarian protists characterized by streaming granular Ectoplasm (cell bio ...

belonging to the superfamily Globorotalioidea in the suborder

Globigerinina The Globigerinina is a suborder of foraminiferans that are found as marine plankton. They produce hyaline calcareous Test (biology), tests, and are known as fossils from the Jurassic period onwards. The group has included more than 100 genera a ...

and the order

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 ...

.Truncorotaloididae
World Foraminifera Database, accessed 27 November 2018 It is found in marine sediments from the middle

Paleocene The Paleocene ( ), or Palaeocene, is a geological epoch (geology), epoch that lasted from about 66 to 56 mya (unit), million years ago (mya). It is the first epoch of the Paleogene Period (geology), Period in the modern Cenozoic Era (geology), ...

to the upper

Eocene The Eocene ( ) is a geological epoch (geology), epoch that lasted from about 56 to 33.9 million years ago (Ma). It is the second epoch of the Paleogene Period (geology), Period in the modern Cenozoic Era (geology), Era. The name ''Eocene'' comes ...

Genera

The family contains the following genera: * '' Acarinina'' * '' Astrorotalia'' * '' Igorina'' * '' Morozovella'' * '' Morozovelloides'' * '' Planorotalites'' * '' Praemurica'' * '' Testacarinata''

References

External links

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Foraminiferida
Foraminifera families Globigerinina {{Foraminifera-stub