File:Sequoioxylon laramense holotype transverse section Torrey 1923 Plate10 fig29.png
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English: A radial thin section of the Sequoioxylon laramense holotype wood. "Fig. 29.- Transverse section . Here are exhibited not only the great contrast between spring and summer wood, so characteristic of all these sequoian species, but also a row of vertical and tylosed resin canals running through the middle of the field and crossed at right angles by a horizontal canal which is best seen moving through the uppermost zone of summer wood where it broadens out."
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 |
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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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| current | 16:20, 20 August 2023 | | 398 × 397 (287 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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