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Rhizopalmoxylon singulare sp. nov. - coralloid palm roots from the Late Cretaceous Deccan Intertrappean beds of Nawargaon, India
| Content Provider | Birbal Sahni Institute of Paleobotany |
|---|---|
| Author | Bonde, S.D. Chate, S.V. Gamre, P.G. |
| Abstract | Permineralized coralloid aerial palm roots forming a thick compact mantle have been described from the Deccan Intertrappean beds of Nawargaon, Maharashtra, India. A medium sized root exhibits rhizodermis, thick exodermis, thin outer and wide inner cortex; fibers in the inner cortex; air cavities in 3-7 concentric rings in the middle zone of inner cortex; polyarch stele with 12-15 xylem and phloem bundles and sclerenchymatous pith with 1-3 medullary bundles. Morpho-anatomical characters of the root suggest its affinity with coralloid roots probably of Hyphaene dichotoma (White) Furtado and Phoenix sylvestris (L.) Roxb. A combination of details of stelar and cortical region is found to be a better criterion to resolvethe natural affinity of permineralized palm roots. Two new combinations of Rhizopalmoxylon, R. angiorhizon and R. macrorhizon are also suggested. |
| Starting Page | 57 |
| Ending Page | 65 |
| File Format | |
| Volume Number | 58 |
| Language | English |
| Publisher Date | 2009-01-01 |
| Access Restriction | Open |
| Subject Keyword | Rhizopalmoxylon Coralloid roots Arecaceae Evolution Deccan Intertrappeans Maastrichtian |
| Content Type | Text |
| Educational Use | Research Reading |
| Resource Type | Article |
| Education Level | Under Graduate Post Graduate |
| Subject | Paleobotany; fossil microorganisms |
