1. An extinct plant of the order Cycadeoidales, resembling cycads and dating from the Mesozoic era.
Usage: paleobotany; technical

1. Of, relating to, or resembling a cycadeoid or the order Cycadeoidales.
Usage: paleobotany; technical

Examples

• Cycadeoids were common during the Jurassic period.
• The fossil showed cycadeoid characteristics in its stem structure.
• Paleontologists discovered a well-preserved cycadeoid specimen in the rock formation.
• Cycadeoid plants had a superficial resemblance to modern cycads.
• The cycadeoid flora of the Mesozoic era provides insight into ancient ecosystems.