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Fig. 7 | Journal of Palaeogeography

Fig. 7

From: Palaeobotanical and biomarker evidence for Early Permian (Artinskian) wildfire in the Rajmahal Basin, India

Fig. 7

Field emission scanning electron microscopic photographs of fossil charcoal fragments from 88 m depth of borehole RMB#2 in the Rajmahal Basin. a Overview of the charcoal fragment in tangential view; b Tracheids in tangential view showing rays which are one cell high; c Detail of tracheids showing biseriate pits and rays; d Detail of tracheids showing homogenized cell wall (arrow) and rays; e Shattered tracheids in cross section; f Shattered tracheids in cross section showing homogenized cell walls (arrow) and so-called “Bogenstrukturen”

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