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Platychara grambastii
Platychara grambastii R.E. Peck, R. Forest. Rev. Palaeobot. Palynol., 28(2): 231. Aug 1979
- Name
- Platychara grambastii
- Rank
- Species
- Original spelling
- grambasti
- Generic Name
- [Genus] Platychara
- Authors (Pub.)
- Peck R. E.
Forester R. M.
- Publication
- The genus Platychara from the Western Hemisphere [1979/8]
- Journal
- Review of Palaeobotany and Palynology
- Volume
- 28
- Issue
- 2
- Page number
- 231
- Year
- 1979
- Parent Taxon
- [Genus] Platychara
- Fossil Status
- gyrogonites
- Stratigraphy
- Maastrichtian
- Location
- Jamaica, the Greater Antilles, Caribbean Sea
- Paleoregion
- America (North)
Data for Holotypus
- Repository
- National Museum of Natural History, Smithsonian Institution, Washington, USA
- Repository Number
- USNM 253235
- Diagnosis
- Small to medium oblate gyrogonites with deep and continuous furrows separating the rosette from the convex portion of the spirals and, on most specimens, with the spirals turned downward around the basal pore to form a small cone. Gyrogonites ranging from 400 to 650/~m in height and 590 to 880 um in width, with an ISI ratio ranging from 58 to 82 and averaging 71. Spirals strongly convex to deeply concave; 4 to 7 spirals, although 5 to 6 spirals commonly visible in lateral view, 6 to 8 present if counting from the basal pore to the center of the summit. Basal pore small.
Nomenclatural synonyms (basionyms)
Species
