Английская Википедия:Caia (plant)

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Шаблон:Short description Шаблон:Automatic taxobox

Caia is a genus of small fossil plants of Late Silurian age (around Шаблон:Period span/brief). The diagnostic characters are naked parallel-sided axes branching isotomously, terminating in vertically elongate sporangia (spore-forming organs) which bear spinous emergences particularly at the distal ends. Spores are trilete and retusoid.[1] The only known species is from Hereford, England.

Cladistic analysis suggests that the genus may belong to the Horneophytopsida, a class of the polysporangiophytes, as it lacks vascular tissue and has branched stems bearing sporangia.[2] For the cladogram, see the Horneophytopsida article.

References

Шаблон:Reflist

Шаблон:Taxonbar


Шаблон:Silurian-plant-stub

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  2. Ошибка цитирования Неверный тег <ref>; для сносок KenrickCrane1997 не указан текст