Online Encyclopedia

A GLOBIGERINA

Online Encyclopedia
Originally appearing in Volume V12, Page 123 of the 1911 Encyclopedia Britannica.
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A GLOBIGERINA. d'Orbigny, a genus of Perforate Foraminifera (q.v.) of pelagic habit, and formed of a conical spiral aggregate of spheroidal chambers with a crescentic mouth. The shells accumulate at the bottom of moderately deep seas to form " Globigerina ooze " and are preserved thus in the chalk. Hastigerina only differs in the " flat " or nautiloid spiral.
End of Article: A GLOBIGERINA
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