File:Protocupressinoxylon dockumense holotype transverse section Torrey 1923 Plate8 fig1.png

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Protocupressinoxylon_dockumense_holotype_transverse_section_Torrey_1923_Plate8_fig1.png ‎(396 × 397 pixels, file size: 142 KB, MIME type: image/png)

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English: A radial thin section of the Protocupressinoxylon dockumense (syn Voltzioxylon dockumense) holotype wood. "Fig. 1.- Transverse section. This figure is introduced to show the condition of much of the Triassic lignite. The tracheids are seen to be crushed flat, and their lumina blocked with resinous matter."

Late Triassic (late Carnian - Rhaetian, 223–200 Ma); Dockum Group, near Spur, Texas

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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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Note: This tag should not be used for sound recordings.PD-1923Public domain in the United States//commons.wikimedia.org/wiki/File:Protocupressinoxylon_dockumense_holotype_transverse_section_Torrey_1923_Plate8_fig1.png

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current15:47, 21 August 2023Thumbnail for version as of 15:47, 21 August 2023396 × 397 (142 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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