Florissantia

Florissantia is an extinct species of flowering plants from prehistoric western North America, from the Eocene to Oligocene Periods of the (56 to 23 million years ago)

Florissantia
Temporal range: Eocene to Oligocene
Florissantia sp. flower
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Malvales
Family: Malvaceae
Subfamily: Sterculioideae
Genus: Florissantia
Manchester
Species
  • F. ashwillii
  • F. quilchenensis
  • F. sikhote-alinensis
  • F. speirii
Synonyms[1]

Porana speirii Lesquereux
Holmskioldia speirii MacGinitie

Fossils

The plant is known from compression fossils of its flowers, fruits, and pollen.

Fossilized remains have been found in several localities, including fossil beds in British Columbia, Washington state, Oregon, and Colorado.[1]

References

  1. Manchester, S. R. (1992). "Flowers, fruits and pollen of Florissantia, an extinct malvalean genus from the Eocene and Oligocene of western North America". American Journal of Botany. 79 (9): 996–1008. doi:10.2307/2444909. JSTOR 2444909.


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