Vitis microdentata

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

Num

2: 3

Pub.

Some Early Paleogene species from Western Kamchatka [1994/12]

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.