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Shukla, Anumeha
- Early Eocene (∼50 M. Y.) Legume Fruits from Rajasthan
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1 Birbal Sahni Institute of Palaeosciences, 53 University Road, Lucknow 226 007, IN
1 Birbal Sahni Institute of Palaeosciences, 53 University Road, Lucknow 226 007, IN
Source
Current Science, Vol 111, No 3 (2016), Pagination: 465-467Abstract
The early Eocene (55-52 Ma) is one of the most biologically diverse intervals associated with extensive migration of biota from one land to another in the earth's history. This epoch has witnessed exceptionally warm temperature recorded in global deep marine environments, though Shukla et. al. have recently suggested cooler early Eocene temperature regime for the terrestrial biome on the basis of CLAMP analysis. The north-moving Indian subcontinent is said to be subducted beneath the Eurasian plate at this juncture, and the biota of each land mass marked its own way to move far and wide. To study these changes in deep time we have collected several plant fossils from the Gurha lignite mine (27.87398°N, 72.86709°E) in Rajasthan. Our collection contains several legume (family Fabaceae) fruits of which two are systematically described here.Full Text
- Pentamerous Fossil Flowers and Fruits from Rajasthan Reveals the Dominance of Flowering Plants in the Early Palaeogene of India
Abstract Views :52 |
PDF Views:39
Authors
Affiliations
1 Birbal Sahni Institute of Palaeosciences, 53 University Road, Lucknow 226 007, IN
1 Birbal Sahni Institute of Palaeosciences, 53 University Road, Lucknow 226 007, IN
Source
Current Science, Vol 125, No 3 (2023), Pagination: 321-324Abstract
The dominance of angiosperms, achieved around the late Cretaceous–early Palaeogene time, can be observed through multiple well-preserved fossil flowers and fruits described from the early Palaeogene sediments of Bikaner and Barmer (Rajasthan, India). Here, we report twelve pentamerous fossil flowers categorized into three morphotypes mainly based on their petal’s shape and pattern. Fossil pollen Rhoipites anacardioides Ramanujam, extracted from the preserved androecium of one of the fossil flowers, has shown strong affinity with the modern pollen of Anacardiaceae. The pentamerous fossil fruit encompassing a single whorl of five carpels alternating with petals is similar to the extinct genus Chaneya Wang and Manchester. These fossils provide a cinematic picture of the beautiful flowering and fruiting phases during the early Palaeogene, well known for the major diversification of angiosperms.Keywords
Angiosperm, Anacardiaceae, Chaneya, Palana Formation, Rutaceae.Full Text
References
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