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![FIGURE 4—Examples of mummified Metasequoia glyptostroboides remains from Giraffe Pipe terrestrial sediments immediately overlying the lacustrine sequence. A) Litter dominated by M. glyptostroboides from a depth of 85 m in the core (62 m equivalent vertical depth; cf. Fig. 1). B) Higher magnification scanning electron micrograph of Metasequoia needles reveal their exceptional preservation. Scale bars = 1 cm in A, 500 μm in B]()
![Figure 4. Stem profiles of two Metasequoia glyptostroboides measured in the field at Tanashi Experiment Station (solid circles) and Izu Forest Experiment Station (solid diamonds). Calculated heights for a given radius derived from an exact parabolic model plotted for each tree (open symbols)]()
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![Figure 3. Relationship between log radius and stem taper for Metasequoia glyptostroboides (A) and Chamaecyparis thyoides (B). Maximum boundary relationship shown by solid line]()
![Figure 4. A, Plot of average canopy diameter against average ratio of tree height to stem diameter at DBH for Metasequoia glyptostroboides grown in open- and closed-canopy settings. Error bars are ± one standard error. Regression equation: H/D = −0.18837 Cd2 + 1.2895Cd + 40.0025; R2 = 0.96, where Cd is canopy diameter in meters and H/D is height to diameter ratio in meters. Fossil tree height was estimated using the average distance between trees to estimate crown spread (Cd) in meters. We used a canopy diameter of 3.8 m and a diameter of the largest and best-preserved stumps (D) in meters and a stem diameter of 1.05 cm to calculate fossil tree height for level N forest. Data are from Kuser (1982, 1983), Kuser et al. (1997), Saito et al. (1970), and Williams et al. (2003b). B, Bivariate plot of natural-log-transformed height and diameter data for Metasequoia glyptostroboides grown in natural stands in Hubei Province, China. Regression equation: Tree Ht = 42.26DBH0.678; R2 = 0.63]()
![Fig. 3.]()
![Figure 5. Partial ion chromatogram showing the pyrolysis-GC/MS analysis of modern Metasequoia glyptostroboides leaf. A, After lipid extraction (Residue 1). B, After lipid extraction and saponification (Residue 2). Note the presence of long-chain n-alkane/alk-1-ene homologues in trace amounts in the extracted plant tissue and its absence post saponification (as revealed by inset m/z 83+85 mass chromatograms). Other abbreviations same as in Figures 2 and 3.]()
![Figure 9. Bivariate plot of log-transformed average plant mass (grams) versus stem density. Data are from Enquist et al. (1998). Data have been truncated to populations growing at densities common to forests although the regression line and confidence intervals are those determined on the entire data set. Diamonds represent modern plantation Metasequoia glyptostroboides from data presented by Saito et al. (1970), Satoo (1974), Nakane and Nakai (1994), and Williams et al. (2003b). Solid cross represents the N forest density of 1275 stems/ha and corresponding average plant mass of 491 kg. Broken lines show the 95% confidence interval for a single predicted independent variable]()
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1-20 OF 30 RESULTS FOR
Metasequoia glyptostroboides
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FIGURE 4 —Examples of mummified Metasequoia glyptostroboides remains from...
in TROPICAL OCHROPHYTE ALGAE FROM THE EOCENE OF NORTHERN CANADA: A BIOGEOGRAPHIC RESPONSE TO PAST GLOBAL WARMING
> PALAIOS
Published: 01 March 2009
FIGURE 4 —Examples of mummified Metasequoia glyptostroboides remains from Giraffe Pipe terrestrial sediments immediately overlying the lacustrine sequence. A) Litter dominated by M. glyptostroboides from a depth of 85 m in the core (62 m equivalent vertical depth; cf. Fig. 1 ). B) Higher
Image
Figure 4. Stem profiles of two Metasequoia glyptostroboides measured in ...
in Reconstruction of Tertiary Metasequoia forests. I. Test of a method for biomass determination based on stem dimensions
> Paleobiology
Published: 01 January 2003
Figure 4. Stem profiles of two Metasequoia glyptostroboides measured in the field at Tanashi Experiment Station (solid circles) and Izu Forest Experiment Station (solid diamonds). Calculated heights for a given radius derived from an exact parabolic model plotted for each tree (open symbols)
Journal Article
Reconstruction of Tertiary Metasequoia forests. II. Structure, biomass, and productivity of Eocene floodplain forests in the Canadian Arctic
Journal: Paleobiology
Publisher: Paleontological Society
Published: 01 January 2003
Paleobiology (2003) 29 (2): 271–292.
... and foliar biomass using allometric equations derived from modern, plantation-grown Metasequoia glyptostroboides . Estimated stand-level branch biomass was 13 and 6.7 Mg ha −1 in the N and HR forests, respectively. Standing foliar biomass was estimated to be 3.2 and 2.1 Mg ha −1 in the N and HR forests...
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Journal Article
Environmental implications of the preservation of chloroplast ultrastructure in Eocene Metasequoia leaves
Journal: Paleobiology
Publisher: Paleontological Society
Published: 01 January 2005
Paleobiology (2005) 31 (3): 424–433.
...Karimah Schoenhut Abstract Batches of freshly fallen Metasequoia glyptostroboides litter were subjected to one of 12 degradation regimes varying in temperature, pH, and oxygen availability for a three-month decay period. The regimes were intended to simulate possible conditions prevailing during...
FIGURES
Journal Article
Reconstruction of Tertiary Metasequoia forests. I. Test of a method for biomass determination based on stem dimensions
Journal: Paleobiology
Publisher: Paleontological Society
Published: 01 January 2003
Paleobiology (2003) 29 (2): 256–270.
...Figure 4. Stem profiles of two Metasequoia glyptostroboides measured in the field at Tanashi Experiment Station (solid circles) and Izu Forest Experiment Station (solid diamonds). Calculated heights for a given radius derived from an exact parabolic model plotted for each tree (open symbols) ...
FIGURES
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Table 1. Field-measured and reconstructed structural variables and abovegr...
in Reconstruction of Tertiary Metasequoia forests. I. Test of a method for biomass determination based on stem dimensions
> Paleobiology
Published: 01 January 2003
Table 1. Field-measured and reconstructed structural variables and aboveground biomass of two Chamaecyparis thyoides study plots and a Metasequoia glyptostroboides plantation. Actual biomass values derived from allometric equations for M. glyptostroboides in Table 2
Image
Figure 3. Relationship between log radius and stem taper for Metasequoia ...
in Reconstruction of Tertiary Metasequoia forests. I. Test of a method for biomass determination based on stem dimensions
> Paleobiology
Published: 01 January 2003
Figure 3. Relationship between log radius and stem taper for Metasequoia glyptostroboides (A) and Chamaecyparis thyoides (B). Maximum boundary relationship shown by solid line
Image
Figure 4. A, Plot of average canopy diameter against average ratio of tree...
in Reconstruction of Tertiary Metasequoia forests. II. Structure, biomass, and productivity of Eocene floodplain forests in the Canadian Arctic
> Paleobiology
Published: 01 January 2003
Figure 4. A, Plot of average canopy diameter against average ratio of tree height to stem diameter at DBH for Metasequoia glyptostroboides grown in open- and closed-canopy settings. Error bars are ± one standard error. Regression equation: H/D = −0.18837 C d 2 + 1.2895C d + 40.0025; R 2
Image
FTIR spectra of amber exemplars from each horizon in the Danek Bonebed, sho...
in Isotopic characterization of organic matter from the Danek Bonebed (Edmonton, Alberta, Canada) with special reference to amber
> Canadian Journal of Earth Sciences
Published: 15 December 2014
Fig. 3. FTIR spectra of amber exemplars from each horizon in the Danek Bonebed, shown alongside spectra from Albertan Campanian ambers and resins of two representative modern cupressaceous conifers, Metasequoia glyptostroboides and Thuja standischii .
Image
Figure 5. Partial ion chromatogram showing the pyrolysis-GC/MS analysis of...
in Reinvestigation of the occurrence of cutan in plants: implications for the leaf fossil record
> Paleobiology
Published: 01 September 2006
Figure 5. Partial ion chromatogram showing the pyrolysis-GC/MS analysis of modern Metasequoia glyptostroboides leaf. A, After lipid extraction (Residue 1). B, After lipid extraction and saponification (Residue 2). Note the presence of long-chain n -alkane/alk-1-ene homologues in trace amounts
Image
Figure 9. Bivariate plot of log-transformed average plant mass (grams) ver...
in Reconstruction of Tertiary Metasequoia forests. II. Structure, biomass, and productivity of Eocene floodplain forests in the Canadian Arctic
> Paleobiology
Published: 01 January 2003
data set. Diamonds represent modern plantation Metasequoia glyptostroboides from data presented by Saito et al. (1970) , Satoo (1974) , Nakane and Nakai (1994) , and Williams et al. (2003b) . Solid cross represents the N forest density of 1275 stems/ha and corresponding average plant mass of 491
Journal Article
Ecological polarities of mid-Cenozoic fossil plants and animals from central Oregon
Journal: Paleobiology
Publisher: Paleontological Society
Published: 01 January 2004
Paleobiology (2004) 30 (4): 561–588.
... ), but not their view that lodgepole is a breeder. Both pines are sclerophyllous like tolerators, as are dawn redwood ( Metasequoia glyptostroboides ) and bald cypress ( Taxodium distichum ). Among fossil Metasequoia , one species ( M . sp. cf. M. heeri ) is most like living bald cypress, and the other species...
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Journal Article
High Arctic forests during the middle Eocene supported by moderate levels of atmospheric CO 2
Journal: Geology
Publisher: Geological Society of America
Published: 01 December 2014
Geology (2014) 42 (12): 1027–1030.
...), model validation with extant Metasequoia glyptostroboides (Appendix DR3), raw data (Appendix DR4), and stomatal index (Appendix DR5), is available online at www.geosociety.org/pubs/ft2014.htm , or on request from [email protected] or Documents Secretary, GSA, P.O. Box 9140, Boulder, CO 80301...
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Journal Article
Ecological conservatism in the “living fossil” Ginkgo
Journal: Paleobiology
Publisher: Paleontological Society
Published: 01 January 2003
Paleobiology (2003) 29 (1): 84–104.
... today by M. glyptostroboides H. H. Hu & Cheng. Like Ginkgo , the geographic range of Metasequoia has been severely restricted; however, areas of near-natural stands still grow in one mountain valley in south-central China. It occurs there along stream banks and at seepages at the bases...
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Journal Article
TROPICAL OCHROPHYTE ALGAE FROM THE EOCENE OF NORTHERN CANADA: A BIOGEOGRAPHIC RESPONSE TO PAST GLOBAL WARMING
Journal: PALAIOS
Publisher: SEPM Society for Sedimentary Geology
Published: 01 March 2009
PALAIOS (2009) 24 (3): 192–198.
...FIGURE 4 —Examples of mummified Metasequoia glyptostroboides remains from Giraffe Pipe terrestrial sediments immediately overlying the lacustrine sequence. A) Litter dominated by M. glyptostroboides from a depth of 85 m in the core (62 m equivalent vertical depth; cf. Fig. 1 ). B) Higher...
FIGURES
| View All (4)
Journal Article
Reinvestigation of the occurrence of cutan in plants: implications for the leaf fossil record
Journal: Paleobiology
Publisher: Paleontological Society
Published: 01 September 2006
Paleobiology (2006) 32 (3): 432–449.
...Figure 5. Partial ion chromatogram showing the pyrolysis-GC/MS analysis of modern Metasequoia glyptostroboides leaf. A, After lipid extraction (Residue 1). B, After lipid extraction and saponification (Residue 2). Note the presence of long-chain n -alkane/alk-1-ene homologues in trace amounts...
FIGURES
| View All (5)
Journal Article
High CO 2 increases the freezing sensitivity of plants: Implications for paleoclimatic reconstructions from fossil floras
Journal: Geology
Publisher: Geological Society of America
Published: 01 November 2002
Geology (2002) 30 (11): 963–966.
... in April 2000. These species included two deciduous conifers ( Metasequoia glyptostroboides , Taxodium distichum ), one evergreen conifer ( Sequoia sempervirens ), and two Southern Hemisphere evergreens ( Nothofagus cunninghamii , Araucaria araucana ). All of these taxa have long fossil records...
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Journal Article
Contrasting seasonal patterns of carbon gain in evergreen and deciduous trees of ancient polar forests
Journal: Paleobiology
Publisher: Paleontological Society
Published: 01 January 2005
Paleobiology (2005) 31 (1): 141–150.
...: Taxodium distichum (L.) Rich (deciduous taxodioid), Metasequoia glyptostroboides Hu & Cheng (deciduous taxodioid), Sequoia sempervirens (D. Don) Endl. (evergreen taxodioid), Ginkgo biloba L. (deciduous gymnosperm), and Nothofagus cunninghamii (Hook.) Oerst. (evergreen angiosperm). These taxa...
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Journal Article
New leaf-mine fossil from the Geumgwangdong Formation, Pohang Basin, South Korea, associates pygmy moths (Lepidoptera, Nepticulidae) with beech trees (Fagaceae, Fagus ) in the Miocene
Journal: Journal of Paleontology
Publisher: Paleontological Society
Published: 01 March 2019
Journal of Paleontology (2019) 93 (2): 337–342.
... of the Leaf Miners : Amsterdam , Springer , p. 39 – 53 . Hu , H.H. , and Cheng , W.C. , 1948 , On the new family Metasequoiaceae and on Metasequoia glyptostroboides , a living species of the genus Metasequoia found in Szechuan and Hupeh : Bulletin of the Fan Memorial Institute of Biology...
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Journal Article
Microfossils in resin from the middle Eocene Buchanan Lake Formation, Napartulik, Axel Heiberg Island, Nunavut, Canada
Journal: Palynology
Publisher: AASP -The Palynological Society
Published: 16 January 2023
Palynology (2023) 47 (1): 2127956.
.... 2010 . Antifungal activity of leaf essential oil and extracts of Metasequoia glyptostroboides Miki ex Hu . Journal of the American Oil Chemists’ Society . 87 ( 3 ): 327 – 336 . Basinger J , Greenwood D , Sweda T. 1994 . Early Tertiary vegetation of Arctic Canada and its...
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