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Bennettitales (Williamsonia sewardiana)

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description Bennettitales (Williamsonia sewardiana) Overview

Williamsonia sewardiana is an extinct bennettitalean seed plant known from permineralized Jurassic fossils of the Rajmahal Hills in India. Reconstructions depict a small, branched plant with a persistent stem, a crown of pinnate leaves resembling those of cycads, and stalked reproductive organs that were flower-like in overall appearance but were not true angiosperm flowers. The species is studied in paleobotany because its anatomy helps document the diversity of Mesozoic seed plants.

help Bennettitales (Williamsonia sewardiana) FAQ

How good is Bennettitales (Williamsonia sewardiana)?

Bennettitales (Williamsonia sewardiana) scores 6.90/10 (Fair) on Lunoo, making it rated in the Fossil category. Representative bennettitalean with evolutionary interest; moderate recognition outside paleobotany.

What are the best alternatives to Bennettitales (Williamsonia sewardiana)?

See our alternatives page for Bennettitales (Williamsonia sewardiana) for a ranked list with scores. Top alternatives include: Gangamopteris cyclopteroides, Sue (T. rex FMNH PR 2081), Stan (T. rex BHI 3033).

How does Bennettitales (Williamsonia sewardiana) compare to Gangamopteris cyclopteroides?

See our detailed comparison of Bennettitales (Williamsonia sewardiana) vs Gangamopteris cyclopteroides with scores, features, and an AI-powered verdict.

Is Bennettitales (Williamsonia sewardiana) worth it in 2026?

With a score of 6.90/10, Bennettitales (Williamsonia sewardiana) is a solid option in Fossil. See all Fossil ranked.

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