1. Cone-bearing gymnosperms dating from the Carboniferous period; most are substantial trees; includes the classes Pinopsida (subdivision Pinophytina) and Ginkgopsida (subdivision Ginkgophytina) and Taxopsida (subdivision Taxophytina) which in turn include the surviving orders Coniferales and Taxales (yews) and sometimes Ginkgoales as well as extinct orders such as Cordaitales (of the Carboniferous and Permian)
   - Coniferopsida, class Coniferopsida, Coniferophytina, subdivision Coniferophytina

Type of: class

Part of: class Gymnospermae, division Gymnospermophyta, Gymnospermae, Gymnospermophyta

Encyclopedia: Coniferophyta

• yawner
• yawning
• yawp
• yaws
• yay
• Yazoo
• Yazoo River
• Yb
• Ybit
• order Caryophyllales
• order Casuariiformes
• order Casuarinales
• order Caudata
• order Cestida
• order Cetacea
• order Charadriiformes
• order Charales
• order Chelonethida
• order Chelonia
• order Chiroptera
• order Chlorococcales
• order Chytridiales
• order Ciconiiformes
• order Cilioflagellata
• order Coccidia