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={M. Dettmann and H. T. Clifford and M. 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… Expand
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References

SHOWING 1-10 OF 78 REFERENCES
Lovellea wintonensis gen. et sp. nov.- Early Cretaceous (late Albian), anatomically preserved, angiospermous flowers and fruits from the Winton Formation, western Queensland, Australia
TLDR
Analysis of fossil flowers/fruits of the Winton Formation indicates Lovellea as the sister group of all remaining Laurales excluding Calycanthaceae and Idiospermum and the organisation and morphology of floral parts of the fossils is consistent with a relationship with the Laurale order. Expand
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. Expand
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. Expand
Upper Cretaceous Araucarian cones from Hokkaido : Araucaria nihongii sp. nov
TLDR
Ten small, permineralized cones 3.0–4.2 cm in diameter are described from the Late Cretaceous Upper Yezo Group of Hokkaido, Japan and are described as representing a new species of araucarian cone, Araucaria nihongii Stockey, Nishida et Nishida sp. Expand
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.Expand
Structure and relationships of the Jurassic conifer seed cone Hughmillerites juddii gen. et comb. nov.: Implications for the origin and evolution of Cupressaceae
TLDR
Developmental studies of living cupressaceous seed cones indicate that the range of mature morphologies is strongly correlated with differences in the timing and rate of development for the bract, scale, and ovules, thus supporting the hypothesis that heterochrony plays a major role in the evolution of bract/scale form. Expand
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
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. Expand
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. Expand
Austrosequoia wintonensis, a new taxodiaceous cone from Queensland, Australia
Anew taxodiaceous ovulate cone, Austrosequoia wintonensis gen. et sp. nov., is described from the area of Winton, Queensland. Australia. The material is believed to come from the Upper Cretaceous butExpand
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