| Williamsoniaceae Temporal range: | |||||||||
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| Restoration of Wielandiella | |||||||||
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| Diagram of Weltrichia , a male reproductive structure | |||||||||
Scientific classification  | |||||||||
| Kingdom: | Plantae | ||||||||
| Clade: | Tracheophytes | ||||||||
| Order: | † Bennettitales | ||||||||
| Family: | † Williamsoniaceae (Carruthers) Nathorst, 1913 | ||||||||
| Genera | |||||||||
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Williamsoniaceae is a family within the Bennettitales, an extinct group of seed plants. Members of this family are believed to have been around two meters tall and with widely serrate leaves along a central stem. Reproductive organs of the Williamsoniaceae have varied widely in the fossil record but almost all have been found to be borne on stalks emerging from a ring of leaves. [1]
