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Vitis microdentata
Vitis microdentata O. Lavrenko, Fotjan. NATO ASI Ser. I, Glob. Env. Change, 27: 319. 16 Dec 1994
- Name
- Vitis microdentata
- Rank
- Species
- Generic Name
- [Genus] Vitis
- Authors (Pub.)
- Lavrenko O. D.
Fotjanova L. I.
- Publication
- Some Early Paleogene species from Western Kamchatka [1994/12]
- Journal
- NATO ASI Series
- Volume
- 27
- Page number
- 319
- Year
- 1994
- Fossil Status
- leaves
- Stratigraphy
- Paleocene
- Location
- Snatol River, western Kamtchtka peninsula, Kamchatka Territory, Russian Federation
- Paleoregion
- Eurasia (Far East)
Data for Holotypus
- Repository
- Palaeontological Institute, Russian Academy of Sciences, Moscow, Russian Federation
- Repository Number
- colI. 4256, No. 5/77-10
- Diagnosis
- Leaves simple, varying in length from 4 to 7 cm, in width from 2.5 to 7.5
cm, wide oblong to obovate elliptic; from entire (the smallest, probably a young leaf) to
three-lobed, apex unknown, base auriculate, margin serrate. Teeth irregular spaced, very
small, 7-8 per cm; sinusis rounded, orginate from the base. Venation actinodromous, with
three or five primary veins diverging radially from a single point. Basal veins curved, provided
with 5-6 branches, each of them giving off 1-2 branches to teeth. Secondary veins
craspedodromous, 4-5 per leaf, straight or curved. Tertiaries parallel or sub-parallel; at right
angles to the primaries and secondaries; straight or forked; percurrent, thin but strongly
impressed; quaternaries at right angles to the tertiaries, areolation quadrangular.