232 lines
27 KiB
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232 lines
27 KiB
XML
<document ID-DOI="http://dx.doi.org/10.3897/phytokeys.156.54175" ID-GBIF-Dataset="05cafb6c-7551-4d94-a925-f6659d277dcf" ID-PMC="PMC7456426" ID-Pensoft-Pub="1314-2003-156-81" ID-Pensoft-UUID="81BD8602478558B5A24CE462B0574555" ID-PubMed="32913410" ModsDocID="1314-2003-156-81" checkinTime="1598112893941" checkinUser="pensoft" docAuthor="Pujana, Roberto R., Wilf, Peter & Gandolfo, Maria A." docDate="2020" docId="982EFA68589057F5A09DAA66F9C61E0C" docLanguage="en" docName="PhytoKeys 156: 81-102" docOrigin="PhytoKeys 156" docSource="http://dx.doi.org/10.3897/phytokeys.156.54175" docTitle="Cupressinoxylon sp. 1" docType="treatment" docVersion="4" id="81BD8602478558B5A24CE462B0574555" lastPageNumber="81" masterDocId="81BD8602478558B5A24CE462B0574555" masterDocTitle="Conifer wood assemblage dominated by Podocarpaceae, early Eocene of Laguna del Hunco, central Argentinean Patagonia" masterLastPageNumber="102" masterPageNumber="81" pageNumber="81" updateTime="1668139957736" updateUser="ExternalLinkService">
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<mods:mods xmlns:mods="http://www.loc.gov/mods/v3">
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<mods:titleInfo>
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<mods:title>Conifer wood assemblage dominated by Podocarpaceae, early Eocene of Laguna del Hunco, central Argentinean Patagonia</mods:title>
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</mods:titleInfo>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Pujana, Roberto R.</mods:namePart>
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<mods:affiliation>Museo Argentino de Ciencias Naturales, Ciudad de Buenos Aires 1405, Argentina</mods:affiliation>
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<mods:nameIdentifier type="orcid">https://orcid.org/0000-0001-8006-3332</mods:nameIdentifier>
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<mods:nameIdentifier type="email">rpujana@gmail.com</mods:nameIdentifier>
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</mods:name>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Wilf, Peter</mods:namePart>
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<mods:affiliation>Department of Geosciences and Earth and Environmental Systems Institute, Pennsylvania State University, University Park PA 16802, USA</mods:affiliation>
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<mods:nameIdentifier type="orcid">https://orcid.org/0000-0001-6813-1937</mods:nameIdentifier>
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</mods:name>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Gandolfo, Maria A.</mods:namePart>
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<mods:affiliation>LH Bailey Hortorium, Plant Biology Section, School of Integrative Plant Science, Cornell University, Ithaca, NY 14850, USA</mods:affiliation>
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</mods:name>
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<mods:typeOfResource>text</mods:typeOfResource>
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<mods:relatedItem type="host">
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<mods:titleInfo>
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<mods:title>PhytoKeys</mods:title>
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</mods:titleInfo>
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<mods:part>
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<mods:date>2020</mods:date>
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<mods:detail type="volume">
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<mods:number>156</mods:number>
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</mods:detail>
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<mods:extent unit="page">
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<mods:start>81</mods:start>
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<mods:end>102</mods:end>
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</mods:extent>
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</mods:part>
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</mods:relatedItem>
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<mods:location>
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<mods:url>http://dx.doi.org/10.3897/phytokeys.156.54175</mods:url>
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</mods:location>
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<mods:classification>journal article</mods:classification>
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<mods:identifier type="DOI">http://dx.doi.org/10.3897/phytokeys.156.54175</mods:identifier>
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<mods:identifier type="Pensoft-Pub">1314-2003-156-81</mods:identifier>
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<mods:identifier type="Pensoft-UUID">81BD8602478558B5A24CE462B0574555</mods:identifier>
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</mods:mods>
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<treatment ID-GBIF-Taxon="167292894" LSID="urn:lsid:plazi:treatment:982EFA68589057F5A09DAA66F9C61E0C" httpUri="http://treatment.plazi.org/id/982EFA68589057F5A09DAA66F9C61E0C" lastPageNumber="81" pageId="0" pageNumber="81">
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<subSubSection pageId="0" pageNumber="81" type="nomenclature">
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<paragraph pageId="0" pageNumber="81">
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cf.
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<taxonomicName LSID="982EFA68-5890-57F5-A09D-AA66F9C61E0C" authority="sp. 1" class="Pinopsida" family="Podocarpaceae" genus="Cupressinoxylon" higherTaxonomySource="GBIF" kingdom="Plantae" lsidName="Cupressinoxylon" order="Pinales" pageId="0" pageNumber="81" phylum="Tracheophyta" rank="genus">Cupressinoxylon sp. 1</taxonomicName>
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<figureCitation captionStart="Figure 4" captionStartId="F4" captionText="Figure 4. cf. Cupressinoxylon sp. 1, MPEF-Pb 10733: A Growth rings (TS) B detail of a growth ring boundary (TS) C Detail of roundish tracheids and axial parenchyma (arrowheads) (TS) D uniseriate non contiguous intertracheary radial pits and cross-field pit (arrowhead) (SEM) E and F cross-fields with bordered pits (SEM) G axial parenchyma (arrowhead) and cross-fields with bordered pits (RLS) H uniseriate rays (TLS) I uniseriate rays (TLS). Scale bars: 5 mm (A); 500 μm (B); 100 μm (C, I); 20 μm (D, E, F, G); 200 μm (H)." figureDoi="10.3897/phytokeys.156.54175.figure4" httpUri="https://binary.pensoft.net/fig/444204" pageId="0" pageNumber="81">Figure 4A-I</figureCitation>
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="81" type="materials_examined">
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<paragraph pageId="0" pageNumber="81">Studied material.</paragraph>
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<paragraph pageId="0" pageNumber="81">MPEF-Pb 10733.</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="81" type="locality">
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<paragraph pageId="0" pageNumber="81">Locality.</paragraph>
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<paragraph pageId="0" pageNumber="81">
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LU8 at Laguna del Hunco (Fig.
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<figureCitation captionStart="Figure 1" captionStartId="F1" captionText="Figure 1. Location map and satellite images (Instituto Geografico Nacional de la Republica Argentina, upper, and Google, CNES / Airbus, below) showing the Laguna del Hunco section and sampling locations. Scale in the satellite image below (tilted) varies across the map." figureDoi="10.3897/phytokeys.156.54175.figure1" httpUri="https://binary.pensoft.net/fig/444201" pageId="0" pageNumber="81">1</figureCitation>
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, Table
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<tableCitation captionStart="Table 1" captionStartId="T1" captionText="Table 1. Geographical coordinates of the localities where the fossils were collected." httpUri="http://table.plazi.org/id/FE0E2F0754B3B033A5E82964E8BDEA5E" pageId="0" pageNumber="81" tableUuid="FE0E2F0754B3B033A5E82964E8BDEA5E">1</tableCitation>
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), Chubut Province, Argentina.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="81" type="stratigraphic provenance">
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<paragraph pageId="0" pageNumber="81">Stratigraphic provenance.</paragraph>
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<paragraph pageId="0" pageNumber="81">Tufolitas Laguna del Hunco, Huitrera Formation (Ypresian, early Eocene).</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="81" type="description">
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<paragraph pageId="0" pageNumber="81">Description.</paragraph>
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<paragraph pageId="0" pageNumber="81">
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Growth ring boundaries are distinct (Fig.
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<figureCitation captionStart="Figure 4" captionStartId="F4" captionText="Figure 4. cf. Cupressinoxylon sp. 1, MPEF-Pb 10733: A Growth rings (TS) B detail of a growth ring boundary (TS) C Detail of roundish tracheids and axial parenchyma (arrowheads) (TS) D uniseriate non contiguous intertracheary radial pits and cross-field pit (arrowhead) (SEM) E and F cross-fields with bordered pits (SEM) G axial parenchyma (arrowhead) and cross-fields with bordered pits (RLS) H uniseriate rays (TLS) I uniseriate rays (TLS). Scale bars: 5 mm (A); 500 μm (B); 100 μm (C, I); 20 μm (D, E, F, G); 200 μm (H)." figureDoi="10.3897/phytokeys.156.54175.figure4" httpUri="https://binary.pensoft.net/fig/444204" pageId="0" pageNumber="81">4A, B</figureCitation>
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), with a gradual transition from earlywood to latewood (Fig.
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<figureCitation captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Protophyllocladoxylon francisiae, MPEF-Pb 10694: A Growth rings of type D (transverse section, TS) B detail of a growth ring of type D boundary (TS) C opposite (arrowheads) intertracheary radial pits (radial longitudinal section, RLS) D alternate (arrowheads) intertracheary radial pits (RLS) E and F cross-fields (RLS) G wall alteration of the secondary walls of tracheids (tangential longitudinal section, TLS) H uniseriate rays (TLS) I uniseriate rays (TLS). Scale bars: 5 mm (A); 500 μm (B); 50 μm (C, D, E, F, G); 100 μm (H); 200 μm (I)." figureDoi="10.3897/phytokeys.156.54175.figure2" httpUri="https://binary.pensoft.net/fig/444202" pageId="0" pageNumber="81">2B</figureCitation>
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). Tracheids are roundish to polygonal as seen in transverse section (Fig.
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<figureCitation captionStart="Figure 4" captionStartId="F4" captionText="Figure 4. cf. Cupressinoxylon sp. 1, MPEF-Pb 10733: A Growth rings (TS) B detail of a growth ring boundary (TS) C Detail of roundish tracheids and axial parenchyma (arrowheads) (TS) D uniseriate non contiguous intertracheary radial pits and cross-field pit (arrowhead) (SEM) E and F cross-fields with bordered pits (SEM) G axial parenchyma (arrowhead) and cross-fields with bordered pits (RLS) H uniseriate rays (TLS) I uniseriate rays (TLS). Scale bars: 5 mm (A); 500 μm (B); 100 μm (C, I); 20 μm (D, E, F, G); 200 μm (H)." figureDoi="10.3897/phytokeys.156.54175.figure4" httpUri="https://binary.pensoft.net/fig/444204" pageId="0" pageNumber="81">4C</figureCitation>
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). Intertracheary pitting in radial walls is abietinean, predominantly uniseriate (Si = 1.01), very rarely biseriate, non-contiguous (Cp = 7.2%), and opposite when biseriate (Fig.
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<figureCitation captionStart="Figure 4" captionStartId="F4" captionText="Figure 4. cf. Cupressinoxylon sp. 1, MPEF-Pb 10733: A Growth rings (TS) B detail of a growth ring boundary (TS) C Detail of roundish tracheids and axial parenchyma (arrowheads) (TS) D uniseriate non contiguous intertracheary radial pits and cross-field pit (arrowhead) (SEM) E and F cross-fields with bordered pits (SEM) G axial parenchyma (arrowhead) and cross-fields with bordered pits (RLS) H uniseriate rays (TLS) I uniseriate rays (TLS). Scale bars: 5 mm (A); 500 μm (B); 100 μm (C, I); 20 μm (D, E, F, G); 200 μm (H)." figureDoi="10.3897/phytokeys.156.54175.figure4" httpUri="https://binary.pensoft.net/fig/444204" pageId="0" pageNumber="81">4D</figureCitation>
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). Intertracheary pits are rounded in outline; 13.9 (10.4-15.8, SD = 1.1)
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<normalizedToken originalValue="μm">μm</normalizedToken>
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in vertical diameter (Fig.
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<figureCitation captionStart="Figure 4" captionStartId="F4" captionText="Figure 4. cf. Cupressinoxylon sp. 1, MPEF-Pb 10733: A Growth rings (TS) B detail of a growth ring boundary (TS) C Detail of roundish tracheids and axial parenchyma (arrowheads) (TS) D uniseriate non contiguous intertracheary radial pits and cross-field pit (arrowhead) (SEM) E and F cross-fields with bordered pits (SEM) G axial parenchyma (arrowhead) and cross-fields with bordered pits (RLS) H uniseriate rays (TLS) I uniseriate rays (TLS). Scale bars: 5 mm (A); 500 μm (B); 100 μm (C, I); 20 μm (D, E, F, G); 200 μm (H)." figureDoi="10.3897/phytokeys.156.54175.figure4" httpUri="https://binary.pensoft.net/fig/444204" pageId="0" pageNumber="81">4D</figureCitation>
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). Tracheid tangential diameter is 24.2 (18.8-32.4, SD= 3.3)
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<normalizedToken originalValue="μm">μm</normalizedToken>
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. Axial parenchyma is present, scarce, and apparently with a tendency to be tangentially zonate (Fig.
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<figureCitation captionStart="Figure 4" captionStartId="F4" captionText="Figure 4. cf. Cupressinoxylon sp. 1, MPEF-Pb 10733: A Growth rings (TS) B detail of a growth ring boundary (TS) C Detail of roundish tracheids and axial parenchyma (arrowheads) (TS) D uniseriate non contiguous intertracheary radial pits and cross-field pit (arrowhead) (SEM) E and F cross-fields with bordered pits (SEM) G axial parenchyma (arrowhead) and cross-fields with bordered pits (RLS) H uniseriate rays (TLS) I uniseriate rays (TLS). Scale bars: 5 mm (A); 500 μm (B); 100 μm (C, I); 20 μm (D, E, F, G); 200 μm (H)." figureDoi="10.3897/phytokeys.156.54175.figure4" httpUri="https://binary.pensoft.net/fig/444204" pageId="0" pageNumber="81">4C, G, I</figureCitation>
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). Cross-fields have 1-2, mostly one, mean 1.2, pits per cross-field (Fig.
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<figureCitation captionStart="Figure 4" captionStartId="F4" captionText="Figure 4. cf. Cupressinoxylon sp. 1, MPEF-Pb 10733: A Growth rings (TS) B detail of a growth ring boundary (TS) C Detail of roundish tracheids and axial parenchyma (arrowheads) (TS) D uniseriate non contiguous intertracheary radial pits and cross-field pit (arrowhead) (SEM) E and F cross-fields with bordered pits (SEM) G axial parenchyma (arrowhead) and cross-fields with bordered pits (RLS) H uniseriate rays (TLS) I uniseriate rays (TLS). Scale bars: 5 mm (A); 500 μm (B); 100 μm (C, I); 20 μm (D, E, F, G); 200 μm (H)." figureDoi="10.3897/phytokeys.156.54175.figure4" httpUri="https://binary.pensoft.net/fig/444204" pageId="0" pageNumber="81">4D-G</figureCitation>
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). Cross-field pits are circular and bordered, apparently the border is usually wider than the aperture, and the aperture is rounded; 7.4 (5.2-9.6, SD = 1.2)
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<normalizedToken originalValue="μm">μm</normalizedToken>
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in vertical diameter (Figs
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<figureCitation captionStart="Figure 4" captionStartId="F4" captionText="Figure 4. cf. Cupressinoxylon sp. 1, MPEF-Pb 10733: A Growth rings (TS) B detail of a growth ring boundary (TS) C Detail of roundish tracheids and axial parenchyma (arrowheads) (TS) D uniseriate non contiguous intertracheary radial pits and cross-field pit (arrowhead) (SEM) E and F cross-fields with bordered pits (SEM) G axial parenchyma (arrowhead) and cross-fields with bordered pits (RLS) H uniseriate rays (TLS) I uniseriate rays (TLS). Scale bars: 5 mm (A); 500 μm (B); 100 μm (C, I); 20 μm (D, E, F, G); 200 μm (H)." figureDoi="10.3897/phytokeys.156.54175.figure4" httpUri="https://binary.pensoft.net/fig/444204" pageId="0" pageNumber="81">4D-G</figureCitation>
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,
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<figureCitation captionStart="Figure 6" captionStartId="F6" captionText="Figure 6. Schematic drawing of the cross-fields: A Protophyllocladoxylon francisiae B cf. Cupressinoxylon sp. 1 C Phyllocladoxylon antarcticum D cf. Cupressinoxylon sp. 2. Scale bar: 50 μm." figureDoi="10.3897/phytokeys.156.54175.figure6" httpUri="https://binary.pensoft.net/fig/444206" pageId="0" pageNumber="81">6B</figureCitation>
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). Horizontal walls of ray parenchyma cells are smooth (Fig.
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<figureCitation captionStart="Figure 4" captionStartId="F4" captionText="Figure 4. cf. Cupressinoxylon sp. 1, MPEF-Pb 10733: A Growth rings (TS) B detail of a growth ring boundary (TS) C Detail of roundish tracheids and axial parenchyma (arrowheads) (TS) D uniseriate non contiguous intertracheary radial pits and cross-field pit (arrowhead) (SEM) E and F cross-fields with bordered pits (SEM) G axial parenchyma (arrowhead) and cross-fields with bordered pits (RLS) H uniseriate rays (TLS) I uniseriate rays (TLS). Scale bars: 5 mm (A); 500 μm (B); 100 μm (C, I); 20 μm (D, E, F, G); 200 μm (H)." figureDoi="10.3897/phytokeys.156.54175.figure4" httpUri="https://binary.pensoft.net/fig/444204" pageId="0" pageNumber="81">4E-G</figureCitation>
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). Average ray height is medium, 4.0 (1-11, SD = 1.9) cells high, rays are exclusively uniseriate (Fig.
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<figureCitation captionStart="Figure 4" captionStartId="F4" captionText="Figure 4. cf. Cupressinoxylon sp. 1, MPEF-Pb 10733: A Growth rings (TS) B detail of a growth ring boundary (TS) C Detail of roundish tracheids and axial parenchyma (arrowheads) (TS) D uniseriate non contiguous intertracheary radial pits and cross-field pit (arrowhead) (SEM) E and F cross-fields with bordered pits (SEM) G axial parenchyma (arrowhead) and cross-fields with bordered pits (RLS) H uniseriate rays (TLS) I uniseriate rays (TLS). Scale bars: 5 mm (A); 500 μm (B); 100 μm (C, I); 20 μm (D, E, F, G); 200 μm (H)." figureDoi="10.3897/phytokeys.156.54175.figure4" httpUri="https://binary.pensoft.net/fig/444204" pageId="0" pageNumber="81">4H-I</figureCitation>
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) and with a frequency of 6.7 (4-8, SD = 1.2) rays per mm.
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</paragraph>
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<caption doi="10.3897/phytokeys.156.54175.figure4" httpUri="https://binary.pensoft.net/fig/444204" pageId="0" pageNumber="81" start="Figure 4" startId="F4">
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<paragraph pageId="0" pageNumber="81">
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<emphasis bold="true" pageId="0" pageNumber="81">Figure 4.</emphasis>
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cf.
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<taxonomicName class="Pinopsida" family="Cupressaceae" genus="Cupressinoxylon" higherTaxonomySource="GBIF" kingdom="Plantae" lsidName="Cupressinoxylon" order="Pinales" pageId="0" pageNumber="81" phylum="Tracheophyta" rank="genus">
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<emphasis italics="true" pageId="0" pageNumber="81">Cupressinoxylon</emphasis>
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</taxonomicName>
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sp. 1, MPEF-Pb 10733:
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<emphasis bold="true" pageId="0" pageNumber="81">A</emphasis>
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Growth rings (TS)
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<emphasis bold="true" pageId="0" pageNumber="81">B</emphasis>
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detail of a growth ring boundary (TS)
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<emphasis bold="true" pageId="0" pageNumber="81">C</emphasis>
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Detail of roundish tracheids and axial parenchyma (arrowheads) (TS)
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<emphasis bold="true" pageId="0" pageNumber="81">D</emphasis>
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uniseriate non contiguous intertracheary radial pits and cross-field pit (arrowhead) (SEM)
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<emphasis bold="true" pageId="0" pageNumber="81">E</emphasis>
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and
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<emphasis bold="true" pageId="0" pageNumber="81">F</emphasis>
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cross-fields with bordered pits (SEM)
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<emphasis bold="true" pageId="0" pageNumber="81">G</emphasis>
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axial parenchyma (arrowhead) and cross-fields with bordered pits (RLS)
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<emphasis bold="true" pageId="0" pageNumber="81">H</emphasis>
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uniseriate rays (TLS)
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<emphasis bold="true" pageId="0" pageNumber="81">I</emphasis>
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uniseriate rays (TLS). Scale bars: 5 mm (
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<emphasis bold="true" pageId="0" pageNumber="81">A</emphasis>
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); 500
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<normalizedToken originalValue="μm">μm</normalizedToken>
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(
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<emphasis bold="true" pageId="0" pageNumber="81">B</emphasis>
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); 100
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<normalizedToken originalValue="μm">μm</normalizedToken>
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(
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<emphasis bold="true" pageId="0" pageNumber="81">C, I</emphasis>
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); 20
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<normalizedToken originalValue="μm">μm</normalizedToken>
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(
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<emphasis bold="true" pageId="0" pageNumber="81">D, E, F, G</emphasis>
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); 200
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<normalizedToken originalValue="μm">μm</normalizedToken>
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(
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<emphasis bold="true" pageId="0" pageNumber="81">H</emphasis>
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).
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</paragraph>
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</caption>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="81" type="remarks">
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<paragraph pageId="0" pageNumber="81">Remarks.</paragraph>
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<paragraph pageId="0" pageNumber="81">
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Abietinean intertracheary radial pitting and apparently cupressoid pits in the cross-fields (bordered pits with the border wider than the aperture) indicate that this specimen belongs to the genus
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<taxonomicName class="Pinopsida" family="Cupressaceae" genus="Cupressinoxylon" higherTaxonomySource="GBIF" kingdom="Plantae" lsidName="Cupressinoxylon" order="Pinales" pageId="0" pageNumber="81" phylum="Tracheophyta" rank="genus">
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<emphasis italics="true" pageId="0" pageNumber="81">Cupressinoxylon</emphasis>
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</taxonomicName>
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, following
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<bibRefCitation DOI="https://doi.org/10.1016/j.revpalbo.2007.09.004" author="Philippe, M" journalOrPublisher="Review of Palaeobotany and Palynology" pageId="0" pageNumber="81" pagination="184 - 207" refId="B34" refString="Philippe, M, Bamford, MK, 2008. A key to morphogenera used for Mesozoic conifer-like woods. Review of Palaeobotany and Palynology 148 (2-4): 184 - 207, DOI: https://doi.org/10.1016/j.revpalbo.2007.09.004" title="A key to morphogenera used for Mesozoic conifer-like woods." url="https://doi.org/10.1016/j.revpalbo.2007.09.004" volume="148" year="2008">Philippe and Bamford (2008)</bibRefCitation>
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.
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<taxonomicName class="Pinopsida" family="Cupressaceae" genus="Cupressinoxylon" higherTaxonomySource="GBIF" kingdom="Plantae" lsidName="Cupressinoxylon" order="Pinales" pageId="0" pageNumber="81" phylum="Tracheophyta" rank="genus">
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<emphasis italics="true" pageId="0" pageNumber="81">Cupressinoxylon</emphasis>
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</taxonomicName>
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includes wood with affinity to
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<taxonomicName family="Cupressaceae" lsidName="" pageId="0" pageNumber="81" rank="family">Cupressaceae</taxonomicName>
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and
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<taxonomicName family="Podocarpaceae" lsidName="" pageId="0" pageNumber="81" rank="family">Podocarpaceae</taxonomicName>
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, with cupressoid cross-field pits (
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<bibRefCitation DOI="https://doi.org/10.1016/j.revpalbo.2013.09.001" author="Pujana, RR" journalOrPublisher="Review of Palaeobotany and Palynology" pageId="0" pageNumber="81" pagination="122 - 137" refId="B37" refString="Pujana, RR, Santillana, SN, Marenssi, SA, 2014. Conifer fossil woods from the La Meseta Formation (Eocene of Western Antarctica): Evidence of Podocarpaceae -dominated forests. Review of Palaeobotany and Palynology 200: 122 - 137, DOI: https://doi.org/10.1016/j.revpalbo.2013.09.001" title="Conifer fossil woods from the La Meseta Formation (Eocene of Western Antarctica): Evidence of Podocarpaceae - dominated forests." url="https://doi.org/10.1016/j.revpalbo.2013.09.001" volume="200" year="2014">Pujana et al. 2014</bibRefCitation>
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).
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</paragraph>
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<paragraph pageId="0" pageNumber="81">
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Cross-field pit border width is a key character of
|
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<taxonomicName class="Pinopsida" family="Cupressaceae" genus="Cupressinoxylon" higherTaxonomySource="GBIF" kingdom="Plantae" lsidName="Cupressinoxylon" order="Pinales" pageId="0" pageNumber="81" phylum="Tracheophyta" rank="genus">
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<emphasis italics="true" pageId="0" pageNumber="81">Cupressinoxylon</emphasis>
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</taxonomicName>
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. The poor preservation of this specimen prevents clear observation of the cross-field pits and also of the axial parenchyma walls; consequently, this specimen cannot be assigned with confidence to this fossil-genus and it is left as cf.
|
|
<taxonomicName class="Pinopsida" family="Cupressaceae" genus="Cupressinoxylon" higherTaxonomySource="GBIF" kingdom="Plantae" lsidName="Cupressinoxylon" order="Pinales" pageId="0" pageNumber="81" phylum="Tracheophyta" rank="genus">
|
|
<emphasis italics="true" pageId="0" pageNumber="81">Cupressinoxylon</emphasis>
|
|
</taxonomicName>
|
|
.
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|
<bibRefCitation DOI="https://doi.org/10.1016/j.revpalbo.2007.09.004" author="Philippe, M" journalOrPublisher="Review of Palaeobotany and Palynology" pageId="0" pageNumber="81" pagination="184 - 207" refId="B34" refString="Philippe, M, Bamford, MK, 2008. A key to morphogenera used for Mesozoic conifer-like woods. Review of Palaeobotany and Palynology 148 (2-4): 184 - 207, DOI: https://doi.org/10.1016/j.revpalbo.2007.09.004" title="A key to morphogenera used for Mesozoic conifer-like woods." url="https://doi.org/10.1016/j.revpalbo.2007.09.004" volume="148" year="2008">Philippe and Bamford (2008)</bibRefCitation>
|
|
suggested that specimens in which the pit border is thinner than the aperture can also assigned to
|
|
<taxonomicName authorityName="W.Gothan" authorityYear="1905" class="Pinopsida" family="Podocarpaceae" genus="Podocarpoxylon" higherTaxonomySource="GBIF" kingdom="Plantae" lsidName="Podocarpoxylon" order="Pinales" pageId="0" pageNumber="81" phylum="Tracheophyta" rank="genus">
|
|
<emphasis italics="true" pageId="0" pageNumber="81">Podocarpoxylon</emphasis>
|
|
</taxonomicName>
|
|
Gothan.
|
|
</paragraph>
|
|
<paragraph pageId="0" pageNumber="81">
|
|
The particular specimen studied here seems to be more similar to
|
|
<taxonomicName authorityName="W.Gothan" authorityYear="1905" family="Podocarpaceae" lsidName="" pageId="0" pageNumber="81" rank="family">Podocarpaceae</taxonomicName>
|
|
than to
|
|
<taxonomicName authorityName="W.Gothan" authorityYear="1905" family="Cupressaceae" lsidName="" pageId="0" pageNumber="81" rank="family">Cupressaceae</taxonomicName>
|
|
because of the number of pits per cross-field. One, rarely two, pits per cross-field is common in the
|
|
<taxonomicName authorityName="W.Gothan" authorityYear="1905" family="Podocarpaceae" lsidName="" pageId="0" pageNumber="81" rank="family">Podocarpaceae</taxonomicName>
|
|
, whereas it is rarely observed in
|
|
<taxonomicName authorityName="W.Gothan" authorityYear="1905" family="Cupressaceae" lsidName="" pageId="0" pageNumber="81" rank="family">Cupressaceae</taxonomicName>
|
|
(
|
|
<bibRefCitation author="Tainter, FH" journalOrPublisher="School of Forestry, University of Montana, Missoula" pageId="0" pageNumber="81" refId="B46" refString="Tainter, FH, 1968. Microscopic identification of commercial Chilean woods. La identificacion microscopica de las maderas comerciales chilenas. Special Publication Three. School of Forestry, University of Montana, Missoula" title="Microscopic identification of commercial Chilean woods. La identificacion microscopica de las maderas comerciales chilenas. Special Publication Three." year="1968">Tainter 1968</bibRefCitation>
|
|
;
|
|
<bibRefCitation author="Greguss, P" journalOrPublisher="Ichnos" pageId="0" pageNumber="81" refId="B21" refString="Greguss, P, 1972. Xylotomy of the living conifers. Akademiai Kiado, 1-329." title="Xylotomy of the living conifers. Akademiai Kiado, 1 - 329." year="1972">Greguss 1972</bibRefCitation>
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|
;
|
|
<bibRefCitation author="Meylan, BA" journalOrPublisher="American Journal of Botany" pageId="0" pageNumber="81" refId="B28" refString="Meylan, BA, Butterfield, BG, 1978. The structure of New Zealand woods. New Zealand Department of Scientific and Industrial Research, Wellington, 1-250." title="The structure of New Zealand woods. New Zealand Department of Scientific and Industrial Research, Wellington, 1 - 250." year="1978">Meylan and Butterfield 1978</bibRefCitation>
|
|
;
|
|
<bibRefCitation DOI="https://doi.org/10.1163/22941932-90001263" author="Roig, FA" journalOrPublisher="IAWA Bulletin" pageId="0" pageNumber="81" pagination="151 - 162" refId="B42" refString="Roig, FA, 1992. Comparative wood anatomy of southern South America Cupressaceae. IAWA Bulletin 13 (2): 151 - 162, DOI: https://doi.org/10.1163/22941932-90001263" title="Comparative wood anatomy of southern South America Cupressaceae." url="https://doi.org/10.1163/22941932-90001263" volume="13" year="1992">Roig 1992</bibRefCitation>
|
|
;
|
|
<bibRefCitation author="Vidaurre Echeverria, SF" journalOrPublisher="Botanical Journal of the Linnean Society" pageId="0" pageNumber="81" refId="B54" refString="Vidaurre Echeverria, SF, Rallo de la Barra, M, Ulloa Alvarez, I, Rosende Beytia, R, 1987. Anatomy of Chilean conifers [Anatomia de las coniferas chilenas]. In: Proceedings of VI Reunion sobre Investigacion y Desarrollo en Productos Forestales. Universidad de Concepcion, Concepcion, 1-15." title="Anatomy of Chilean conifers [Anatomia de las coniferas chilenas]. In: Proceedings of VI Reunion sobre Investigacion y Desarrollo en Productos Forestales. Universidad de Concepcion, Concepcion, 1 - 15." year="1987">
|
|
Vidaurre
|
|
<normalizedToken originalValue="Echeverría">Echeverria</normalizedToken>
|
|
et al. 1987
|
|
</bibRefCitation>
|
|
;
|
|
<bibRefCitation author="Woltz, P" journalOrPublisher="Revue de Cytologie et de Biologie Vegetales - Le Botaniste" pageId="0" pageNumber="81" pagination="3 - 14" refId="B63" refString="Woltz, P, Gondran, M, Marguerier, J, Gajardo, R, 1998. Xylologie des coniferes endemiques des Andes meridionales au MEB. III. Podocarpaceae. Revue de Cytologie et de Biologie Vegetales - Le Botaniste 21: 3 - 14" title="Xylologie des coniferes endemiques des Andes meridionales au MEB. III. Podocarpaceae." volume="21" year="1998">Woltz et al. 1998</bibRefCitation>
|
|
;
|
|
<bibRefCitation DOI="https://doi.org/10.1111/j.1095-8339.2010.01087.x" author="Vasquez Correa, AM" journalOrPublisher="Botanical Journal of the Linnean Society" pageId="0" pageNumber="81" pagination="293 - 302" refId="B53" refString="Vasquez Correa, AM, Alcantara Vara, E, Herrera Machuca, MA, 2010. Wood anatomy of Colombian Podocarpaceae (Podocarpus, Prumnopitys and Retrophyllum). Botanical Journal of the Linnean Society 164 (3): 293 - 302, DOI: https://doi.org/10.1111/j.1095-8339.2010.01087.x" title="Wood anatomy of Colombian Podocarpaceae (Podocarpus, Prumnopitys and Retrophyllum)." url="https://doi.org/10.1111/j.1095-8339.2010.01087.x" volume="164" year="2010">
|
|
<normalizedToken originalValue="Vásquez">Vasquez</normalizedToken>
|
|
Correa et al. 2010
|
|
</bibRefCitation>
|
|
). Nevertheless, at this point we are not able to determine with certainty its affinity.
|
|
</paragraph>
|
|
</subSubSection>
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</treatment>
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</document> |