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Coryphoid palm leaf fossils from the Maastrichtian-Danian of Central India with remarks on phytogeography of the Coryphoideae (Arecaceae).

Srivastava R, Srivastava G, Dilcher DL - PLoS ONE (2014)

Bottom Line: The specimens are compared with modern and fossil taxa of the family Arecaceae.The fossil record of coryphoid palm leaves presented here and reported from the Eurasian localities suggests that this is the oldest record of coryphoid palm leaves from India and also from the Gondwana- derived continents suggesting that the coryphoid palms were well established and wide spread on both northern and southern hemispheres by the Maastrichtian-Danian.The coryphoid palms probably dispersed into India from Europe via Africa during the latest Cretaceous long before the Indian Plate collided with the Eurasian Plate.

View Article: PubMed Central - PubMed

Affiliation: Cenozoic Palaeoflorist Laboratory, Birbal Sahni Institute of Palaeobotany, 53 University Road, Lucknow- 226 007, Uttar Pradesh, India.

ABSTRACT

Premise of research: A large number of fossil coryphoid palm wood and fruits have been reported from the Deccan Intertrappean beds of India. We document the oldest well-preserved and very rare costapalmate palm leaves and inflorescence like structures from the same horizon.

Methodology: A number of specimens were collected from Maastrichtian-Danian sediments of the Deccan Intertrappean beds, Ghughua, near Umaria, Dindori District, Madhya Pradesh, India. The specimens are compared with modern and fossil taxa of the family Arecaceae.

Pivotal results: Sabalites dindoriensis sp. nov. is described based on fossil leaf specimens including basal to apical parts. These are the oldest coryphoid fossil palm leaves from India as well as, at the time of deposition, from the Gondwana- derived continents.

Conclusions: The fossil record of coryphoid palm leaves presented here and reported from the Eurasian localities suggests that this is the oldest record of coryphoid palm leaves from India and also from the Gondwana- derived continents suggesting that the coryphoid palms were well established and wide spread on both northern and southern hemispheres by the Maastrichtian-Danian. The coryphoid palms probably dispersed into India from Europe via Africa during the latest Cretaceous long before the Indian Plate collided with the Eurasian Plate.

No MeSH data available.


Related in: MedlinePlus

Palaeocontinental map showing the position of India and fossil locality (red dot) at 65.5 Ma [21].
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pone-0111738-g001: Palaeocontinental map showing the position of India and fossil locality (red dot) at 65.5 Ma [21].

Mentions: Here we report very rare and well-preserved costapalmate palm leaves under the organ genus Sabalites (S. dindoriensis sp. nov.) from the Deccan Intertrappean sediments (Maastrichtian–Danian) of Central India. This is the oldest fossil record of costapalmate palm leaves from India and the Gondwana- derived continents. The locality bearing the fossils was situated in a low palaeolatitude ∼18.09° S near the equator (Fig. 1) [21] when the leaves were deposited. Attempts have also been made to discuss the origin and phytogeography of the subfamily Coryphoideae in Indian context.


Coryphoid palm leaf fossils from the Maastrichtian-Danian of Central India with remarks on phytogeography of the Coryphoideae (Arecaceae).

Srivastava R, Srivastava G, Dilcher DL - PLoS ONE (2014)

Palaeocontinental map showing the position of India and fossil locality (red dot) at 65.5 Ma [21].
© Copyright Policy
Related In: Results  -  Collection

Show All Figures
getmorefigures.php?uid=PMC4230940&req=5

pone-0111738-g001: Palaeocontinental map showing the position of India and fossil locality (red dot) at 65.5 Ma [21].
Mentions: Here we report very rare and well-preserved costapalmate palm leaves under the organ genus Sabalites (S. dindoriensis sp. nov.) from the Deccan Intertrappean sediments (Maastrichtian–Danian) of Central India. This is the oldest fossil record of costapalmate palm leaves from India and the Gondwana- derived continents. The locality bearing the fossils was situated in a low palaeolatitude ∼18.09° S near the equator (Fig. 1) [21] when the leaves were deposited. Attempts have also been made to discuss the origin and phytogeography of the subfamily Coryphoideae in Indian context.

Bottom Line: The specimens are compared with modern and fossil taxa of the family Arecaceae.The fossil record of coryphoid palm leaves presented here and reported from the Eurasian localities suggests that this is the oldest record of coryphoid palm leaves from India and also from the Gondwana- derived continents suggesting that the coryphoid palms were well established and wide spread on both northern and southern hemispheres by the Maastrichtian-Danian.The coryphoid palms probably dispersed into India from Europe via Africa during the latest Cretaceous long before the Indian Plate collided with the Eurasian Plate.

View Article: PubMed Central - PubMed

Affiliation: Cenozoic Palaeoflorist Laboratory, Birbal Sahni Institute of Palaeobotany, 53 University Road, Lucknow- 226 007, Uttar Pradesh, India.

ABSTRACT

Premise of research: A large number of fossil coryphoid palm wood and fruits have been reported from the Deccan Intertrappean beds of India. We document the oldest well-preserved and very rare costapalmate palm leaves and inflorescence like structures from the same horizon.

Methodology: A number of specimens were collected from Maastrichtian-Danian sediments of the Deccan Intertrappean beds, Ghughua, near Umaria, Dindori District, Madhya Pradesh, India. The specimens are compared with modern and fossil taxa of the family Arecaceae.

Pivotal results: Sabalites dindoriensis sp. nov. is described based on fossil leaf specimens including basal to apical parts. These are the oldest coryphoid fossil palm leaves from India as well as, at the time of deposition, from the Gondwana- derived continents.

Conclusions: The fossil record of coryphoid palm leaves presented here and reported from the Eurasian localities suggests that this is the oldest record of coryphoid palm leaves from India and also from the Gondwana- derived continents suggesting that the coryphoid palms were well established and wide spread on both northern and southern hemispheres by the Maastrichtian-Danian. The coryphoid palms probably dispersed into India from Europe via Africa during the latest Cretaceous long before the Indian Plate collided with the Eurasian Plate.

No MeSH data available.


Related in: MedlinePlus