Evidence for Lignin-Like Constituents in Early Silurian (Llandoverian) Plant Fossils

@article{Niklas1980EvidenceFL,
  title={Evidence for Lignin-Like Constituents in Early Silurian (Llandoverian) Plant Fossils},
  author={Karl J. Niklas and Lisa M. Pratt},
  journal={Science},
  year={1980},
  volume={209},
  pages={396 - 397}
}
Chemical evidence is presented with previously reported morphological features for banded-tube cell types in the earliest known plant fossils associated with stream-deposited sediments. Phenolic aldehydes (p-hydroxybenzaldehyde, vanillin) and aromatic compounds from pyrolysis (2-methoxy-4-hydroxybenzaldehyde, methylsyringaldehyde) derived from cellular remains are interpreted as evidence for lignin or lignin-like degradation products. The presence of parallel-aligned banded tubes, with annular… 
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