Sphenophyllales

A piece of rock showing imprints of about four slender vine-like stems with small wedged-shaped leaves arranged around regularly spaced nodes.

Sphenophyllales is an extinct order of articulate land plants and a sister group to the present-day Equisetales (horsetails). They are fossils dating from the Devonian to the Triassic. They were common during the Late Pennsylvanian to Early Permian, with most of the fossils coming from the Carboniferous period.

单词	Sphenophyllales
释义	Sphenophyllales /sfi'nɔfiləliz/ 英汉-汉英词典楔叶目词组 \| 习惯用语您要查找的是不是： phenolphthalein n. 酚酞 Sphenophyllales n. [古植] 楔叶目英语百科 Sphenophyllales Sphenophyllales is an extinct order of articulate land plants and a sister group to the present-day Equisetales (horsetails). They are fossils dating from the Devonian to the Triassic. They were common during the Late Pennsylvanian to Early Permian, with most of the fossils coming from the Carboniferous period.
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Sphenophyllales /sfi'nɔfiləliz/

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Sphenophyllales