Globigerina Protoreticulata
''Globigerina'' () is a genus of planktonic Foraminifera, in the order of Rotaliida.Globigerina
World Foraminifera Database, accessed 3 December 2018 It has populated the world's oceans since the Middle .

''Globigerina'' ooze

Vast areas of the ocean floor are covered with ''Globigerina'' ooze, dominated by the shells of ''Globigerina'' and other

Jurassic
The Jurassic ( ) is a Geological period, geologic period and System (stratigraphy), stratigraphic system that spanned from the end of the Triassic Period million years ago (Mya) to the beginning of the Cretaceous Period, approximately Mya. The Jurassic constitutes the middle period of the Mesozoic, Mesozoic Era and is named after the Jura Mountains, where limestone strata from the period were first identified. The start of the Jurassic was marked by the major Triassic–Jurassic extinction event, associated with the eruption of the Central Atlantic magmatic province, Central Atlantic Magmatic Province. The beginning of the Toarcian Stage started around 183 million years ago and is marked by an extinction event associated with widespread Anoxic event, oceanic anoxia, ocean acidification, and elevated temperatures likely caused by the eruption of the Karoo-Ferrar, Karoo-Ferrar large igneous provinces. The end of the Jurassic, however, has no clear boundary with the Cretaceous and i ...
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