Palmoxylon vastanense

Name

Palmoxylon vastanense

Rank

Species

Original spelling

vastanensis / vatsanensis

Generic Name

[Genus] Palmoxylon

Authors (Pub.)

Prasad M. Singh H. Singh S. K. Mukherjee D. Estrada-Ruiz E.  

Publication

Early Eocene arecoid palm wood, Palmoxylon vastanensis n. sp. from Vastan Lignite, Gujarat, India: its palaeoenvironmental Implications [2013/6]

Journal

Journal of the Palaeontological Society of India

Volume

15

Issue

1

Page number

116

Year

2013

Fossil Status

stems (wood)

Stratigraphy

Ypresian

Strat. comment

Cambay Shale Formation

Location

Vastan lignite mine, Gujarat, India

Paleoregion

Eurasia (Indostan)

Data for Holotypus

Repository

Birbal Sahni Institute of Palaeosciences, Lucknow, India

Repository Number

39901

Num

Pl. I, figs. a-k; Pl. II, figs. a-c

Pub.

Early Eocene arecoid palm wood, Palmoxylon vastanensis n. sp. from Vastan Lignite, Gujarat, India: its palaeoenvironmental Implications [2013/6]

Diagnosis

Wood blackish in colour; comprising subdermal and central size 4x2.6cm, fibro-vascular bundles in subdermal zone irregularly oriented with one metaxylem vessel sometimes two may be present; size of the bundles ranges from 440x500-700-800µm; dorsal sclerenchymatous sheath reniform; cells of this sheath generally not preserved. A layer of tabular parenchyma present around the fibrous part of the bundle; auricular lobes round, auricular sinus absent; diminutive fibrovascular bundles rare, fibrous bundles absent, leaf-trace bundles rare. Fibrovascular bundles of central zone irregularly dispersed in ground tissue, bigger in size as compared to sub-dermal zone; 1000x900-1200x1000µm; the sclerenchymatous sheath reniform, cells of this sheath partly preserved; frequency of the fibrovascular bundles is 30-35 cm² and the f/v ratio varies 4/1-5/1; tabular parenchyma present; stegmata absent. Ground tissue highly lacunar; cells rod to cylindrical and variously shaped forming large air spaces; secretory cells present in the ground tissue; diminutive fibrovascular bundles rare; leaf trace bundles present.