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Nelumbo aureavallis
Nelumbo aureavallis L.J. Hickey Mem. Geol. Soc. Amer., 150: 123. 19 Jul 1977
- Name
- Nelumbo aureavallis
- Rank
- Species
- Generic Name
- [Genus] Nelumbo
- Authors (Pub.)
- Hickey L. J.
- Publication
- Stratigraphy and paleobotany of the Golden Valley Formation (Early Tertiary) of Western North Dakota [1977/7]
- Journal
- Memoirs of the Geological Society of America
- Volume
- 150
- Page number
- 123
- Year
- 1977
- Fossil Status
- leaves
- Stratigraphy
- Thanetian
- Location
- In the south central part of the Fairy Dells, Dunn County, North Dakota, USA
- Paleoregion
- America (North)
Data for Holotypus
- Repository
- National Museum of Natural History, Smithsonian Institution, Washington, USA
- Repository Number
- USNM 43231
Data for Paratypus
- Repository
- National Museum of Natural History, Smithsonian Institution, Washington, USA
- Repository Number
- USNM 43229
- Diagnosis
- Leaves orbiculate; centrally peltate; as much as 40 cm in diameter; margin
entire, slightly undulate, turned down over much of the circumference of the holotype; texture coriaceous. Venation reticulate actinodromous, with 35 to 45 stout, slightly irregular primary veins originating at the center of the leaf and branching from one to three times as they radiate outward; secondary veins arise at angles of 45° to 80° from the primaries and are moderately percurrent; tertiaries originate at angles of 70° to 80° with the secondaries;
course orthogonal; quaternary venation forming the intercostal reticulum; areoles equant and hexagonal, 0.3 to 0.5 mm across, no freely ending veinlets; rank of highest order venation, fourth; highest order with excurrent branching, third. A flower bud 2.2 by 1.2 cm and similar in shape and arrangement of its bracts to those of the modern species of lotus was found in close association with, but not attached to, the holotype of the species. It is placed provisionally in this taxon.
