File:EB1911 Paleobotany - Sphenophyllum insigne - stem.jpg
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| Description |
English: Photograph of a fossil of Sphenophyllum insigne: transverse section of stem, showing triangular primary wood, secondary wood, remains of phloem, and primary cortex. |
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| Date | published 1911 | |||
| Source | “Palaeobotany,” Encyclopædia Britannica (11th ed.), v. 20, 1911, plate facing p. 526, fig. 5. | |||
| Author | Scott, Studies | |||
| Permission (Reusing this file) |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 16:29, 7 September 2017 | | 1,114 × 1,109 (288 KB) | Bob Burkhardt | {{Information |Description ={{en|1=Photograph of a fossil of ''Sphenophyllum insigne'': transverse section of stem, showing triangular primary wood, secondary wood, remains of phloem, and primary cortex.}} |Source =“Palaeobotany,” Encycl... |
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