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Dicotylophyllum hamameloides
Dicotylophyllum hamameloides L.J. Hickey Mem. Geol. Soc. Amer., 150: 147. 19 Jul 1977
- Name
- Dicotylophyllum hamameloides
- Rank
- Species
- Generic Name
- [Genus] Dicotylophyllum
- 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
- 147
- Year
- 1977
- Fossil Status
- leaves
- Stratigraphy
- Thanetian
- Location
- Western pit of the Hebron Brick Company, Morton County, USA
- Paleoregion
- America (North)
Data for Holotypus
- Repository
- National Museum of Natural History, Smithsonian Institution, Washington, USA
- Repository Number
- USNM 43707
- Diagnosis
- Leaf elliptic with a dentate margin and an acute, apiculate apex; the dentations occurring as small, glandular protuberences at widely separated intervals; texture coriaceous; the lack of a base makes it impossible to tell if the leaf is pinnate or merely imperfectly actinodromous. Midvein thick and straight, becoming thin and zigzag near the apex; secondaries diverging at approximately 45°; course irregular; sending a weak loop to the superadjacent secondary and a branch to the dentations; tertiaries random or very weakly percurrent; higher order venation very widely spaced and randomly reticulate; venation above fifth order and areolation not preserved.
