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Rarytkinia amaamensis
Rarytkinia amaamensis M.G. Moiseeva Paleontol. Zhurn., 2008, (3): 96. 2008
- Name
- Rarytkinia amaamensis
- Rank
- Species
- Generic Name
- [Genus] Rarytkinia
- Authors (Pub.)
- Moiseeva M. G.
- Publication
- Novye pokrytosemennye iz maastrikhta rajona laguny Amaam (Severo-Vostok Rossii) [2008]
- Journal
- Paleontologicheskii Zhurnal
- Annee/Jahrgang
- 2008
- Issue
- 3
- Page number
- 96
- Year
- 2008
- Fossil Status
- leaves
- Stratigraphy
- Maastrichtian
- Strat. comment
- Korjakian suite
- Location
- mouth of Skalistyj Creek, left bank of Emima River, Amaam lagoon, Tchukotka Autonomous District, Russian Federation
- Paleoregion
- Eurasia (Far East)
Data for Holotypus
- Repository
- Geological Institute, Russian Academy of Sciences, Moscow, Russian Federation
- Repository Number
- 4843/248
- Diagnosis
- Leaves simple, entire, from medium
to large, the length to width ratio typically 2 : 1. Leaf
lamina elliptical or ovate, symmetric. Leaf base cuneate, decurrent. Leaf apex acute or slightly rounded.
Leaf margin undulate-crenate or undulate with rare
small asymmetrical triangular teeth. Venation pinnate
craspedodromous or semicraspedodromous. Secondary
veins 7–12 pairs. Angle between secondary veins and
the midvein about 50°. Lower two or three pairs of secondary vein short and thin, arranged close to each other.
Tertiary venation sparse, branching scalariform.
