noun
- Plural of cycadeoid; extinct plants of the Mesozoic era that resembled cycads but were not true cycads, characterized by a short trunk and crown of large compound leaves.
Usage: paleobotany; scientific/technical term; plural form
Examples
- Cycadeoids were common during the Jurassic and Cretaceous periods.
- Fossil evidence shows that cycadeoids had a different reproductive structure than modern cycads.
- Paleontologists study cycadeoids to understand the evolution of seed plants.
- The cycadeoids dominated many Mesozoic landscapes before their extinction.