| A characteristic feature of gymnosperms is polyembryony manifested in the formation of more than one embryo in immature seed. |
| The plants in this age also switched over to gymnosperms instead of being Cycads. |
| Simple trichomes are present on aerial surfaces of most angiosperms and on some gymnosperms and bryophytes. |
| As in other gymnosperms, the ovule consisted of one megasporangium within a single integument. |
| Among the plant branches, there were several supported groupings representing only gymnosperms or conifers. |
| Archegonia occur in most gymnosperms except Gnetum and Welwitschia, but they are lacking in all angiosperms. |
