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Ficus palaeoracemosa
Ficus palaeoracemosa G. Srivast., R. Srivast., R.C. Mehrotra J. Earth Syst. Sci., 120(2): 255. Apr 2011
- Name
- Ficus palaeoracemosa
- Rank
- Species
- Generic Name
- [Genus] Ficus
- Authors (Pub.)
- Srivastava G.
Srivastava R.
Mehrotra R. C.
- Publication
- Ficus palaeoracemosa sp. nov. – A new fossil leaf from the Kasauli Formation of Himachal Pradesh and its palaeoclimatic significance [2011/4]
- Journal
- Journal of earth system science
- Volume
- 120
- Issue
- 2
- Page number
- 255
- Year
- 2011
- Fossil Status
- leaves
- Stratigraphy
- Miocene
- Strat. comment
- Kasauli Formation
- Location
- Kasauli–Kalka road near a slaughterhouse
below Kashmiri Mohalla, Solan District,
Himachal Pradesh, India
- Paleoregion
- Eurasia (Indostan)
Data for Holotypus
- Repository
- Birbal Sahni Institute of Palaeobotany, Lucknow, India
- Repository Number
- Specimen no. BSIP 39833
- Num
- Figure 1 (a)
- Descr.
- incorrectly designated as a 'neotype'; "the impression in silty sandstone
was badly cracked and too fragile to be isolated.
Therefore, after clearing the dust from the surface
of the leaf, the fossil was photographed under
the sunlight using Canon SX110 digital camera.
Because the original material was destroyed during
the extraction, its figure is used as the type material
as per article 9.6 of the International Code of
Botanical Nomenclature (Mcneill 2006). The neotype
in the form of a high resolution image is
deposited in the museum of the Birbal Sahni Institute
of Palaeobotany, Lucknow"
- Pub.
- Ficus palaeoracemosa sp. nov. – A new fossil leaf from the Kasauli Formation of Himachal Pradesh and its palaeoclimatic significance [2011/4]
- Diagnosis
- Leaf complete, simple, symmetrical,
mesophyll, elliptic; preserved lamina length
12.44 cm, maximum width 6.18 cm near the
middle position; apex acute; base symmetrical, obtuse, normal; margin entire; texture, appearing
chartaceous; attachment with petiole normal,
petiole length 1.52 cm; venation pinnate, eucamptodromous;
primary vein moderate in thickness,
slightly curved; secondary veins six pairs visible,
0.77–3.59 cm apart, distance decreasing upwards,
alternate to sub-opposite, moderately thick, angle
of divergence moderate acute (52◦–63◦) (the basal
pair of secondaries which is thinner than the
mid-vein gives the false impression of basal acrodromous
venation), lowermost secondary veins
opposite, more acute than middle ones, predominantly
uniform but a few secondaries abruptly
curved joining super-adjacent secondaries with
percurrent tertiary veins; intersecondary veins
present, simple; tertiary veins percurrent, simple,
convex, oblique in relation to mid-vein, close,
angle of origin AA-OA; quaternary veins and further
fine features not preserved.