| Noun | 1. | Ginkgoales - coextensive with the family Ginkgoaceae: plants that first appeared in the Permian and now represented by a single surviving species; often included in Coniferales plant order - the order of plants class Ginkgophytina, class Ginkgopsida, Ginkgophytina, Ginkgopsida, subdivision Ginkgophyta, subdivision Ginkgophytina - ginkgos: in some systems classified as a class and in others as a subdivision; used in some classifications for one of five subdivisions of Gymnospermophyta family Ginkgoaceae, ginkgo family, Ginkgoaceae - constituting the order Ginkgoales; includes the genus Ginkgo and extinct forms |