37,000-Year-Old Thorny Bamboo Fossil
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A 37,000-year-old fossilized thorny bamboo stem, the earliest known in Asia, was discovered in silt deposits along the Chirang River in Manipur's Imphal Valley, India.
About
- Discovery Site: Found in silt-rich deposits of Chirang River at Senjam-Chirang village, Imphal Valley, Manipur, India.
- Age: Dated to approximately 37,000 years ago, Late Pleistocene epoch.
- Scientific Team: Researchers from Birbal Sahni Institute of Palaeosciences (BSIP), under Department of Science & Technology (DST).
- Fossil Type: Intact bamboo stem (Chimonobambusa manipurensis) showing thorn scars, nodes, internodes, and buds.
- Significance: Asia's earliest thorny bamboo fossil; proves thorniness (herbivore defense) existed during Ice Age when all kind got eliminated elsewhere, like Europe.
- Preservation Rarity: Bamboo's hollow, fibrous stems rarely fossilize; thorn scars almost never preserved.
- Comparisons: Matches modern thorny species like Bambusa bambos and Chimonobambusa callosa in thorn placement.
- Ecological Insight: Indicates Northeast India's Indo-Burma hotspot as Ice Age refugium with warm, humid conditions amid global cooling.
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