Biology:Archaeanthus
Archaeanthus is an extinct genus of flowering plants known from the Cretaceous of North America.[1] It was a member of the Magnoliaceae family. The fossil evidence includes multifollicular fruits, perianth parts, floral bud scales, and leaves, all suggesting it belonged to a plant with large, insect-pollinated flowers resembling magnolias. The structure of Archaeanthus demonstrates that several floral traits considered "basal" among angiosperms—such as helically arranged floral organs and numerous ovules—were already present by the mid-Cretaceous, supporting the magnoliid hypothesis of early flower evolution.[1] There is some debate regarding its exact placement within the Magnoliaceae family with some suggesting it could be a relative of Tulip trees.[1][2][3]
Distribution
Archaeanthus is known from Kansas.[1]
References
- ↑ 1.0 1.1 1.2 1.3 Dilcher, David L.; Crane, Peter R. (1984). "Archaenthus: An Early Angiosperm From the Cenomanian of the Western Interior of North America". Annals of the Missouri Botanical Garden 71 (2): 351. doi:10.2307/2399030. ISSN 0026-6493. https://doi.org/10.2307/2399030.
- ↑ Lazaro, Enrico de (2013-09-13). "Archaeanthus: Paleontologists Identify Ancient Ancestor of Tulip Tree | Sci.News" (in en-US). https://www.sci.news/paleontology/science-archaeanthus-ancient-ancestor-tulip-tree-01379.html.
- ↑ DOYLE, James A.; ENDRESS, Peter K. (2010). "Integrating Early Cretaceous fossils into the phylogeny of living angiosperms: Magnoliidae and eudicots". Journal of Systematics and Evolution 48 (1): 1–35. doi:10.1111/j.1759-6831.2009.00058.x. ISSN 1674-4918. https://doi.org/10.1111/j.1759-6831.2009.00058.x.
Wikidata ☰ Q135984057 entry
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