Extended Data Fig. 3: Additional spectra of O. giraldae, showing a more-advanced state of degradation. | Nature

Extended Data Fig. 3: Additional spectra of O. giraldae, showing a more-advanced state of degradation.

From: Early fungi from the Proterozoic era in Arctic Canada

Extended Data Fig. 3

The typical peaks of chitin and chitosan are present, but at a lower intensity than in the standard. The region of the saccharides (wavenumber of 1,200–800 cm−1), which is necessary for polymer recognition, is very weak in intensity. Each measurement was repeated three times with similar results.

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