globigerina globigerina globigerina (/ɡloʊˌbɪdʒəˈraɪnə/) is a genus of planktonic foraminifera, in the order of rotaliida. it has populated the world's oceans since the middle jurassic. globigerinatemporal range: middle jurassic - recent. illustration of globigerina ooze scientific classification domain: eukaryota clade: diaphoretickes clade: sar phylum: retaria infraphylum: foraminifera class: globothalamea order: globigerinida superfamily: globigerinoidea family: globigerinidae subfamily: globigerininae genus: globigerinad'orbigny, 1826 globigerina ooze vast areas of the ocean floor are covered with globigerina ooze, dominated by the foraminiferous shells of globigerina and other globigerinina. the name was originally applied to mud collected from the bottom of the atlantic ocean when planning the location of the first transatlantic telegraph cables and it was mainly composed of the shells of globigerina bulloides. description globigerina has a globose, trochospirally enrolled test composed of spherical to ovate but not radially elongate chambers that enlarge rapidly as added, commonly with only three to five in the final whorl. the test (or shell) wall is calcareous, perforate, with cylindrical pores. during life the surface has numerous long slender spines that are broken on dead or fossil shells, the short blunt remnants resulting in a hispid surface. the aperture a high umbilical arch that may be bordered by an imperforate rim or narrow lip. no secondary apertures. species globigerina includes the following species (extinct species marked with a dagger, †) globigerina bulloides d'orbigny, 1826 globigerina compacta hofker, 1956 † globigerina cretacea d'orbigny, 1840 † (later reclassified as muricohedbergella delrioensis) globigerina dubia egger, 1857 † globigerina falconensis blow, 1959 globigerina hexagona natland, 1938 globigerina paratriloculinoides hofker, 1956 † globigerina paravenezuelana hofker, 1956 † globigerina protoreticulata hofker, 1956 † globigerina pseudocretacea hofker, 1956 † globigerina stainforthi hofker, 1956 † globigerina supracretacea hofker, 1956 †