What is "ginkgopsida"

Ginkgophyta \Ginkgophyta\, Ginkgophytina \Ginkgophytina\, Ginkgopsida \Ginkgopsida\n. (Bot.) A division of trees comprising the ginkgos. In some systems it is classified as a class (Ginkgopsida) and in others as a subdivision (Ginkgophytina or Ginkgophyta); used in some classifications for one of five subdivisions of Gymnospermophyta.

Syn: Ginkgopsida, class Ginkgopsida, subdivision Ginkgophytina.