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词汇 Annularia
分类 英语词汇 英语翻译词典
释义

Annularia

英语百科

Annularia

Specimen of Annularia stellata from Italy on display at the Museo Civico di Storia Naturale di Milano
The foliage of Calamites

Annularia is a plant fossil belonging to the order Equisetales.

Annularia is a form taxon. It is the name given to Calamites leaves. In fact the stems and the radiating structures of the leaf whorls is similar in the Calamites, an extinct genus of horsetails.

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