Annona miocenica

Name

Annona miocenica

Rank

Species

Generic Name

[Genus] Annona

Authors (Pub.)

Prasad M. Alok Kannaujia A. K. Kumar S. Singh S. K.  

Publication

Middle Miocene flora from Siwalik foreland basin of Uttarakhand, India and its phytogeographic and palaeoclimatic implications [2017]

Journal

Palaeobotanist

Volume

60

Issue

1–2

Page number

228

Year

2017

Fossil Status

leaves

Stratigraphy

Miocene

Strat. comment

Lower Siwalik Formation

Location

Spot No. 1 (29º8'27.4": 80º11'6.9"), near Hanuman Chatti, Purniyagiri Road section, Tanakpur, Champawat District, Uttarakhand, India

Paleoregion

Eurasia (Indostan)

Data for Holotypus

Repository

Birbal Sahni Institute of Palaeosciences, Lucknow, India

Repository Number

BSIP Museum No. 41288

Num

1: 5, 8

Pub.

Middle Miocene flora from Siwalik foreland basin of Uttarakhand, India and its phytogeographic and palaeoclimatic implications [2017]

Data for Paratypus

Repository

Birbal Sahni Institute of Palaeosciences, Lucknow, India

Repository Number

BSIP Museum No. 41289

Num

1: 6

Pub.

Middle Miocene flora from Siwalik foreland basin of Uttarakhand, India and its phytogeographic and palaeoclimatic implications [2017]

Diagnosis

Leaf simple, almost symmetrical, narrow elliptic, preserved size 4.8 x 1.9 cm and 10.5 x 3.5 cm; apex broken; base acute; margin entire; texture chartaceous; petiole not preserved; venation pinnate, eucamptodromous, primary vein (1º) single, prominent, stout, slightly curved; secondary veins (2º) 10 pairs visible, 0.5–1.5 cm apart, alternate to subopposite, angle of divergence 60º–80º, wide acute, uniformly curved up, moderate, basal secondaries less acute, unbranched; tertiary veins (3º) fine, angle of origin AO–RR, per current, almost straight, branched, oblique in relation to midvein, alternate to opposite and close.