The name Burdigalian comes from
Burdigala, the
Latin name for the city of
Bordeaux,
France. The Burdigalian Stage was introduced in scientific literature by
Charles Depéret in 1892. The base of the Burdigalian is at the first appearance of
foram species
Globigerinoides altiaperturus and the top of magnetic
chronozone C6An. , an official
GSSP for the Burdigalian had not yet been assigned. The top of the Burdigalian (the base of the Langhian) is defined by the first appearance of foram species
Praeorbulina glomerosa and is also coeval with the top of magnetic chronozone C5Cn.1n. ==Paleontology==