Polyalthia miolongifolia

Name

Polyalthia miolongifolia

Rank

Species

Generic Name

[Genus] Polyalthia

Authors (Pub.)

Singh H. Singh P. K. Prasad M. Singh S. K.  

Publication

Fossil leaves belonging to family Annonaceae from Sub–Himalayan zone (Siwalik) of Himachal Pradesh, India and their climatic and phytogeographical implications [2024/12]

Journal

Journal of Palaeosciences

Volume

73

Issue

2

Page number

171

Year

2024

Fossil Status

leaves

Stratigraphy

Miocene

Strat. comment

Middle Siwalik Group

Location

Kandapatan (31º48.411': 76º46.094') about 4 km from Dharampur on Sarkaghat–Joginder Nagar Road, Mandi District, Himachal Pradesh, India

Paleoregion

Eurasia (Indostan)

Data for Holotypus

Repository

Birbal Sahni Institute of Palaeosciences, Lucknow, India

Repository Number

41241

Num

5 A, C

Pub.

Fossil leaves belonging to family Annonaceae from Sub–Himalayan zone (Siwalik) of Himachal Pradesh, India and their climatic and phytogeographical implications [2024/12]

Diagnosis

Leaf symmetrical, narrow lanceolate, 9.0 x 2.2 cm; apex attenuate; base wide acute; margin entire; venation pinnate, eucamptodromous, rarely brochidodromous; primary vein prominent, weak; secondary veins 25 pairs visible, 0.8 to 0.3 cm apart, alternate to opposite, angle of divergence 45º–75º, uniformly curved up, basal secondaries less acute, unbranched; intersecondary veins present, frequent; tertiary veins with angle of origin AO–RR, percurrent, oblique in relation to mid–vein and close.