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Nuphaea
''Nuphaea engelhardtii'' was a species of aquatic plant, which occurred in the Eocene period of Germany. Description Vegetative characteristics ''Nuphaea engelhardtii'' was an aquatic plant with petiolate, macrophyllous, simple, ovate leaves with an entire margin. The base of the lamina is cordate. The leaves have a prominent medial vein. Taxonomy Publication It was published by Carole T. Gee and David Winship Taylor in 2019. Type specimen The type specimen was collected by Hermann Engelhardt in the Messel Pit, Hessen, Germany.Gee, C. T., & Taylor, D. W. (2019)"An Extinct Transitional Leaf Genus of Nymphaeaceae from the Eocene Lake at Messel, Germany: ''Nuphaea engelhardtii'' Gee et David W. Taylor gen. et sp. nov."International Journal of Plant Sciences, 180(7), 724-736. Position within Nymphaeales It is placed within the family Nymphaeaceae.Vera, E. I., Loinaze, V. S. P., Moyano-Paz, D., Coronel, M. D., Manabe, M., Tsuihiji, T., & Novas, F. E. (2022). Paleobotany of the upp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nymphaeaceae
Nymphaeaceae () is a family of flowering plants, commonly called water lilies. They live as rhizomatous aquatic herbs in temperate climate, temperate and tropical climates around the world. The family contains five genera with about 70 known species. Water lilies are rooted in soil in bodies of water, with leaves and flowers floating on or rising from the surface. Leaves are oval and heart-shaped in ''Barclaya''. Leaves are round, with a radial notch in ''Nymphaea'' and ''Nuphar'', but fully circular in ''Victoria (plant), Victoria'' and ''Euryale ferox, Euryale''. Water lilies are a well-studied family of plants because their large flowers with multiple unspecialized parts were initially considered to represent the floral pattern of the earliest flowering plants. Later genetic studies confirmed their evolutionary position as basal angiosperms. Analyses of floral morphology and molecular characteristics and comparisons with a sister taxon, the family Cabombaceae, indicate, h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eocene
The Eocene ( ) is a geological epoch (geology), epoch that lasted from about 56 to 33.9 million years ago (Ma). It is the second epoch of the Paleogene Period (geology), Period in the modern Cenozoic Era (geology), Era. The name ''Eocene'' comes from the Ancient Greek (''Ēṓs'', 'Eos, Dawn') and (''kainós'', "new") and refers to the "dawn" of modern ('new') fauna that appeared during the epoch.See: *Letter from William Whewell to Charles Lyell dated 31 January 1831 in: * From p. 55: "The period next antecedent we shall call Eocene, from ήως, aurora, and χαινος, recens, because the extremely small proportion of living species contained in these strata, indicates what may be considered the first commencement, or ''dawn'', of the existing state of the animate creation." The Eocene spans the time from the end of the Paleocene Epoch to the beginning of the Oligocene Epoch. The start of the Eocene is marked by a brief period in which the concentration of the carbon isoto ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
