Caytoniales
The Caytoniales (Figs. 1-2) are an extinct order of seed plants known from fossils collected throughout the Mesozoic Era, specifically in the late Triassic to Maastrichtian period, around 250 to 70 million years ago. They are regarded as seed ferns because they are seed-bearing plants with fern-like leaves. Although at one time considered angiosperms because of their berry-like cupules, that hypothesis was later disproven. Nevertheless, some authorities consider them likely ancestors of angiosperms, whereas others consider angiosperms more likely derived from Glossopteridales. The origin of angiosperms remains an intriguing puzzle (see Evolutionary history of plants).
Caytoniales
The Caytoniales (Figs. 1-2) are an extinct order of seed plants known from fossils collected throughout the Mesozoic Era, specifically in the late Triassic to Maastrichtian period, around 250 to 70 million years ago. They are regarded as seed ferns because they are seed-bearing plants with fern-like leaves. Although at one time considered angiosperms because of their berry-like cupules, that hypothesis was later disproven. Nevertheless, some authorities consider them likely ancestors of angiosperms, whereas others consider angiosperms more likely derived from Glossopteridales. The origin of angiosperms remains an intriguing puzzle (see Evolutionary history of plants).
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Die Caytoniales sind eine meso ...... Bedecktsamer gestellt werden.
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Kajtoniowce (Caytoniales) – wy ...... triasu, a najmłodsze z kredy.
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Le caytoniali (Caytoniales) so ...... (220 - 65 milioni di anni fa).
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The Caytoniales (Figs. 1-2) ar ...... olutionary history of plants).
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开通目(学名:Caytoniales)是一类已灭绝的种子植物。根、茎不详,主要保存下来的化石是叶和生殖器官,曾被认为是被子植物的祖先。
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Wikipage page ID
20,922,200
Wikipage revision ID
733,405,626
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Fig.1 A whole-plant reconstruction of Caytonia nathorstii
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*Sagenopteris (palmate leaves) ......
*Caytonia (ovulate structure)
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Die Caytoniales sind eine meso ...... Bedecktsamer gestellt werden.
@de
Kajtoniowce (Caytoniales) – wy ...... triasu, a najmłodsze z kredy.
@pl
Le caytoniali (Caytoniales) so ...... (220 - 65 milioni di anni fa).
@it
The Caytoniales (Figs. 1-2) ar ...... olutionary history of plants).
@en
开通目(学名:Caytoniales)是一类已灭绝的种子植物。根、茎不详,主要保存下来的化石是叶和生殖器官,曾被认为是被子植物的祖先。
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Caytoniales
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Caytoniales
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Caytoniales
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Kajtoniowce
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开通目
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Caytoniales
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