Persea miogamblei

Name

Persea miogamblei

Rank

Species

Generic Name

[Genus] Persea

Authors (Pub.)

Khan A. M. Bera S.  

Publication

Occurrence of Persea Mill. from the Siwalik forest of Darjeeling, eastern Himalaya: paleoclimatic and paleogeographic implications [2016/10]

Journal

Journal of Earth Science

Volume

27

Issue

5

Page number

884

Year

2016

Fossil Status

leaves

Stratigraphy

Miocene

Strat. comment

Gish Clay Formation of Sevok Group

Location

Road section exposed along the NH 31 near the Sevok Bridge, Darjeeling District, West Bengal, India

Paleoregion

Eurasia (Indostan)

Data for Holotypus

Repository

Botany Department, University of Kolkata, Kolkata, India

Repository Number

CUH/PPL/SL/19

Num

3a, 3c, 4a

Pub.

Occurrence of Persea Mill. from the Siwalik forest of Darjeeling, eastern Himalaya: paleoclimatic and paleogeographic implications [2016/10]

Diagnosis

Leaf symmetrical, simple, very narrow elliptic; preserved lamina length 5.8 cm, maximum width 1.4 cm; apex attenuate; base acute; margin entire; texture coriaceous; venation pinnate, eucamptodromous; primary vein (1º) single, prominent, almost straight, slightly curved at the basal and apical portion, thicker towards the base; secondary veins (2º) seemingly seven pairs visible, 0.7 to 1.5 cm apart, curved up, angle of divergence acute to right angle (60º–80º), alternate to sub-opposite, unbranched, thinner towards the margin; intersecondery veins absent; tertiary veins (3º) not preserved; exhibits a highly dark polished nature causing difficulties for the study of finer reticulations.