Back
Quercus oligocenensis
Quercus oligocenensis Daghlian, Crepet Amer. J. Bot., 70(5): 645. 21 Jun 1983
- Name
- Quercus oligocenensis
- Rank
- Species
- Generic Name
- [Genus] Quercus
- Authors (Pub.)
- Daghlian C. P.
Crepet W. L.
- Publication
- Oak catkins, leaves, and fruits from the Oligocene Catahoula Formation
and their evolutionary significance [1983/6]
- Journal
- American Journal of Botany
- Volume
- 70
- Issue
- 5
- Page number
- 645
- Year
- 1983
- Fossil Status
- inflorescences (catkins)
- Stratigraphy
- Chattian
- Strat. comment
- Catahoula Formation
- Location
- near Huntsville, Texas, USA
- Paleoregion
- America (North)
Data for Holotypus
- Repository
- University of Oklahoma, Norman, Oklahoma, USA
- Repository Number
- H500a, H500b (part and counterpart)
- Diagnosis
- Staminate catkins borne in paniculate clusters of up to three axes, each at least 14mm long with helically arranged florets; axes sparsely pubescent, trichomes simple. Florets sessile with lobed perianth and 6 stamens; stamens short, to 2 mm long, anthers extrorse, connectives apiculate. Pollen tricolporate, 25.5 um X 19.3 um; exine sculpture coarsely seabrate with nanno-verrucae on larger sculpture elements; exine tectate, columellate, tectum minutely perforate, foot-layer present, endexine unevenly developed.
