File:Sequoioxylon laramense holotype tangential section Torrey 1923 Plate10 fig31.png
Sequoioxylon_laramense_holotype_tangential_section_Torrey_1923_Plate10_fig31.png (395 × 397 pixels, file size: 231 KB, MIME type: image/png)
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Summary[edit]
DescriptionSequoioxylon laramense holotype tangential section Torrey 1923 Plate10 fig31.png |
English: A tangential thin section of the Sequoioxylon laramense holotype wood. "Fig. 31.-Tangential section.This specimen is so heavily charred that it is difficult to get a section that will show details. However, in the center of the field lies a fusiform ray with a horizontal resin canal containing vesicular resin. Above and to the left of this the appearance of tangential pits on the tracheids proves that this is summer wood. To the right of the resin canal several parenchyma cells with resin drops are seen."
Cretaceous (Maastrichtian),69-68 mya, Laramie Formation, Plentywood, Montana Repository not identified. |
Date | |
Source | "The comparative anatomy and phylogeny of the Coniferales Part 3: Mesozoic and Tertiary coniferous woods" in (1923) Proceedings and Transactions of the Royal Society of Canada, 3, 6 (no. 2), Memoirs of the Boston Society of Natural History, pp. 38−103 |
Author | Torrey, R.E., 1923 |
Licensing[edit]
Public domainPublic domainfalsefalse |
This work is in the public domain in the United States because it was published (or registered with the U.S. Copyright Office) before January 1, 1929.
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Note: This tag should not be used for sound recordings.PD-1923Public domain in the United States//commons.wikimedia.org/wiki/File:Sequoioxylon_laramense_holotype_tangential_section_Torrey_1923_Plate10_fig31.png |
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current | 16:20, 20 August 2023 | 395 × 397 (231 KB) | Kevmin (talk | contribs) | Uploaded a work by Torrey, R.E., 1923 from {{cite book |last1=Torrey |first1=R. E. |year=1923 |chapter=The comparative anatomy and phylogeny of the Coniferales Part 3: Mesozoic and Tertiary coniferous woods |title=Proceedings and Transactions of the Royal Society of Canada |publisher=Memoirs of the Boston Society of Natural History |series=3 |volume=6 (no. 2) |pages=38-103}} with UploadWizard |
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Horizontal resolution | 118.11 dpc |
Vertical resolution | 118.11 dpc |
File change date and time | 15:49, 16 August 2023 |