Emwadea microcarpa gen. et sp. nov.—anatomically preserved araucarian seed cones from the Winton Formation (late Albian), western Queensland, Australia

@article{Dettmann2012EmwadeaMG,
  title={Emwadea microcarpa gen. et sp. nov.—anatomically preserved araucarian seed cones from the Winton Formation (late Albian), western Queensland, Australia},
  author={Mary E. Dettmann and H. Trevor Clifford and Mark Peters},
  journal={Alcheringa: An Australasian Journal of Palaeontology},
  year={2012},
  volume={36},
  pages={217 - 237}
}
Dettmann, M.E., Clifford, H.T., Peters, M., June 2012. Emwadea microcarpa gen. et sp. nov.—anatomically preserved araucarian seed cones from the Winton Formation (late Albian), western Queensland, Australia. Alcheringa, 217–237. ISSN 0311-5518. A new genus and species, Emwadea microcarpa Dettmann, Clifford & Peters, is established for ovulate/seed cones with helically arranged cone scales bearing a centrally positioned, inverted ovule from the basal Winton Formation (late Albian), Eromanga… 

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References

SHOWING 1-10 OF 78 REFERENCES

Wairarapaia mildenhallii gen. et sp. nov., a New Araucarian Cone Related to Wollemia from the Cretaceous (Albian‐Cenomanian) of New Zealand

TLDR
A new genus and species, Wairarapaia mildenhallii Cantrill et Raine, is established for two ovulate cones with helically inserted cone‐scale complexes and a centrally positioned inverted ovule from the Cretaceous of New Zealand, which supports the notion that many records of Araucaria‐like fossils represent basal lineages within the Araucariaceae rather than extinct members of the genus AraUCaria.

A New Female Cone, Araucaria beipoiaoensis sp. nov. from the Middle Jurassic Tiaojishan Formation, Beipiao, Western Liaoning, China and Its Evolutionary Significance

TLDR
The morphology and structure of the cone shows a close relationship to the araucarian cones of fossil and living genera but differs from any known species, and has important significance for the evolution of the Family Araucariaceae.

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

Petrified araucarian remains from Sonajori, Rajmahal Basin, India

Permineralized araucarian ovulate and pollen cones are described here for the first time in close association from Early Cretaceous intertrappean rocks of the Sonajori Locality in the Rajmahal Basin,

Upper Cretaceous Araucarian Cones from Hokkaido and Saghalien: Araucaria nipponensis Sp. Nov.

Six ovulate, permineralized cones, four cone-scale complexes, and one isolated seed are described from the Upper Cretaceous Upper Yezo and Miho Groups from Hokkaido, Japan, and Saghalien, Russia.

Anatomy and Morphology of Araucaria sphaerocarpa Carruthers from the Jurassic Inferior Oolite of Bruton, Somerset

  • R. Stockey
  • Environmental Science
    Botanical Gazette
  • 1980
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.

Yezonia, a new section ofAraucaria (Araucariaceae) based on permineralized vegetative and reproductive organs ofA. vulgaris comb. nov. from the upper cretaceous of Hokkaido, Japan

TLDR
A reconstructed plant,Araucaria vulgaris, supports the theory that an araucarian plant that boreBrachyphyllum-like foliage and aEutacta-like seed cone was predicted by Harris in 1979 and proves the presence of an extinct characteristic-form of the genus.

REPRODUCTIVE BIOLOGY OF THE CERRO CUADRADO (JURASSIC) FOSSIL CONIFERS: PARARAUCARIA PATAGONICA

TLDR
On the basis of anatomical and morphological features, specimens of P. patagonica are compared to members of both extant and extinct families of conifers including the Araucariaceae, Taxodiaceae, Pinaceae, Cupressaceae, and Cheirolepidaceae.
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