擬金粉蕨(學名:Onychiopsis),又名爪形蕨,是一屬已滅絕的蕨類植物,生存於晚侏羅紀至白堊紀。喜生長在湖邊,可能位於森林的邊緣,並與其他種蕨類、蘇鐵類植物生長在一起。它們曾一度被認為是石松類植物,但現已被確認為蕨類植物。[2]
特徵
擬金粉蕨具有精緻的羽狀複葉。齒狀的小葉極窄,約以30度角與莖相連接。另外,從英國和美國發掘出的擬金粉蕨化石之複葉上發現有孢子囊。[2]
物種
- 松葉蘭型擬金粉蕨 Onychiopsis psilotoides Ward
- 伸長擬金粉蕨 Onychiopsis elongata Seward
- Onychiopsis goepperti Berry
- Onychiopsis latiloba Berry, 1911
- Onychiopsis mantelli Nathorst
參考文獻
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