Cycadeoidophyta

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Sunlight shining on leaves. Photosynthesis

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Cuban Bee Hummingbird (Mellisuga helenae) single adult male, Zapata peninsula, Cuba, Caribbean.Bee hummingbirds are the smallest birds in the world.

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Cathedrale St.Jean in Lyon, France has a 14th-century astronomical clock that shows religious feast days till the year 2019; Perpetual Calendar

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Periodical Cicada, Adult, Magicicada spp. Requires 17 years to complete development. Nymph splits its skin, and transforms into an adult. Feeds on sap of tree roots. Northern Illinois Brood. This brood is the largest emergence of cicadas anywhere

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Cycadeoidophyta: Facts & Related Content

Written and fact-checked by The Information Architects of Encyclopaedia Britannica

Facts

Also Known As	Bennettitophyta

Topics

Cycadeoidaceae Williamsoniaceae Cycadeoidea Jurassic Period extinction plant gymnosperm angiosperm fern conifer cycadophyte lycophyte ginkgophyte moss Eospermatopteris Archaefructus hornwort

Quiz

Venus's-flytrap. Venus's-flytrap (Dionaea muscipula) one of the best known of the meat-eating plants. Carnivorous plant, Venus flytrap, Venus fly trap

Plants: From Cute to Carnivorous

Demystified

Plant seedlings emerging from rich fertile soil

Do Plants Feel Pain?