Upper Cretaceous Araucarian cones from Hokkaido : Araucaria nihongii sp. nov

@article{Stockey1992UpperCA,
  title={Upper Cretaceous Araucarian cones from Hokkaido : Araucaria nihongii sp. nov},
  author={Ruth A. Stockey and Harufumi Nishida and Makoto Nishida},
  journal={Review of Palaeobotany and Palynology},
  year={1992},
  volume={72},
  pages={27-40}
}
Ten small, permineralized cones 3.0–4.2 cm in diameter are described from the Late Cretaceous Upper Yezo Group of Hokkaido, Japan. Cones are spherical with prominent winged bracts and thin ovuliferous scales, and bear one seed per cone-scale complex. Internally the pith of the cone axis is parenchymatous grading into plates and nests of sclereids in the peduncle. Numerous resin canals occur in the pith and cortex but are absent in the wood of the cone axis. Bracts display an abcission layer at… Expand
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References

SHOWING 1-10 OF 17 REFERENCES
Anatomy and Morphology of Araucaria sphaerocarpa Carruthers from the Jurassic Inferior Oolite of Bruton, Somerset
Anatomical study of the holotype of the ovulate cone Araucaria sphaerocarpa Carruthers reveals excellently preserved cone and seed tissues in spite of the fragmentary nature of the fossil remains.Expand
Pinus haboroensis sp. nov. and the affinities of permineralized leaves from the Upper Cretaceous of Japan
TLDR
A new species of Pinus is described based on permineralized needles from the Sankebetsugawa, Haboro, and the Koyanosawa, Ikushumbetsu, Mikasa City, Hokkaido, Japan, which has amphistomatic leaves with deeply sunken stomata most closely resemble Tournaisia marina. Expand
PERMINERALIZED PINACEOUS LEAVES FROM THE UPPER CRETACEOUS OF HOKKAIDO
TLDR
Close anatomical comparisons are made with this leaf and previously described permineralized Upper Cretaceous pine needles from Hokkaido and eastern North America. Expand
SEEDS AND EMBRYOS OF ARAUCARIA MIRABILIS
TLDR
Shooting apex, cotyledons, root meristem, and calyptroperiblem are present in the embryos in which vascular tissues and secretory elements were beginning to differentiate at the time of fossilization. Expand
ON ARAUCARITES ROGERSII SEWARD FROM THE LOWER CRETACEOUS KIRKWOOD FORMATION OF THE ALGOA BASIN, CAPE PROVINCE, SOUTH AFRICA
Araucarites rogersii Seward from the Kirkwood Formation (Lower Cretaceous) of South Africa, is redescribed based on new fossil material including a single compressed cone. Some additional observa­Expand
Structure and Diversity of the Woody Conifer Seedling-Like Structures from the Upper Cretaceous of Hokkaido, Japan
TLDR
Permineralized conifer seedling-like structures have been found in calcium carbonate nodules from the Middle and Upper Yezo Groups (Upper Cretaceous) of Hokkaido and most closely resemble those produced by abnormal seedling growth in the extant Araucaria, section Bunya. Expand
The Morphology of Araucaria brasiliensis. III. Fertilization, the Embryo, and the Seed
TLDR
It is concluded that, so far as the pollination apparatus and seed structure are concerned, the Araucarineae could be derived from the lycopods, or perhaps from the Cordaitales, but not from the Abietineae. Expand
The Araucariaceae: An evolutionary perspective
TLDR
Well-preserved Bunya section cones from Europe, South America and India suggest that this section was widespread in both hemispheres during the Jurassic, and that the section Bunya be retained in current taxonomic schemes even though it contains only one extant species. Expand
THE ANATOMY OF THE EMBRYO OF CEDRUS IN THE DORMANT STAGE
TLDR
There are some very interesting anatomical features which beconme differentiated in the embryos of matured conifer seeds, even though the plan of meristematic organization in the embryo is remarkably uniform throughout the Coniferales. Expand
A megastrobilus belonging to the genus Araucarites from the Upper Motuan (Upper Albian), Wairarapa, North Island, New Zealand
TLDR
Investigation of the enclosing matrix showed that Araucariaceae were dominant pollen sources in the New Zealand flora at this time, and araucarian megastrobilus was well preserved. Expand
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