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Porosia
Genus Porosia L.J. Hickey Mem. Geol. Soc. Amer., 150: 114. 19 Jul 1977
- Name
- Porosia
- Rank
- Genus
- 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
- 114
- Year
- 1977
- Parent Taxon
- [Family] Araceae
- Fossil Status
- seeds
- Type
- Porosia verrucosa
- Diagnosis
- Round, suborbiculate, or reniform bodies composed of a carbonaceous
groundmass permeated with tubules oriented at right angles to the surface. Sedimentary filling of the tubules stands in relief after the disappearance of the interstitial carbon. A set of ramified, flabellate veins radiates from the concave margin of the bodies (base) and is faintly impressed upon the surface. A deeply impressed, carbon-filled border, free of tubules, surrounds the bodies except at the base.
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