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Chisocheton himachalensis
Chisocheton himachalensis R. Ranjan, Mah. Prasad, Huk. Singh Geophytology, 55(1): 99. May 2025
- Name
- Chisocheton himachalensis
- Rank
- Species
- Generic Name
- [Genus] Chisocheton
- Authors (Pub.)
- Ranjan R.
Prasad M.
Singh H.
- Publication
- New fossil leaves resembling Chisocheton Blume and Swietenia Jacq. of family Meliaceae from Middle Siwalik Group of Sarkaghat area, Mandi District, Himachal Pradesh, India [2025/5]
- Journal
- Geophytology
- Volume
- 55
- Issue
- 1
- Page number
- 99
- Year
- 2025
- Fossil Status
- leaves
- Stratigraphy
- Miocene
- Strat. comment
- Middle Siwalik Formation; Upper Miocene
- Location
- Sagoti Bridge Section near Bawali (N 31º44.265´:E 76º43.339´) about 7 km from Sarkaghat on Sarkaghat-Dharampur Road, Mandi District, Himachal Pradesh, India
- Paleoregion
- Eurasia (Indostan)
Data for Holotypus
- Repository
- Birbal Sahni Institute of Palaeosciences, Lucknow, India
- Repository Number
- 41252-41253 [two specimens]
- Diagnosis
- Leaf asymmetrical, narrow elliptic, 15.2 x 4.5 cm and 12.5 x 3.5 cm; apex
acuminate; base acute, margin entire; venation eucamptodromous; primary vein prominent, stout; secondary veins about 18 pairs visible, 0.5-1.3 cm
apart, usually alternate to sub-opposite, angle of divergence 55º to 65º, sometimes the curvature of secondary vein is more pronounced near the
margin; inter secondary veins present, simple, rare; tertiary veins fine, angle of origin usually RR, percurrent, straight to sinuous, oblique in relation
to mid vein, and close.
