Articles | Volume 39, issue 2
https://doi.org/10.5194/jm-39-93-2020
https://doi.org/10.5194/jm-39-93-2020
Research article
 | 
08 Jul 2020
Research article |  | 08 Jul 2020

Middle Jurassic (Bajocian) planktonic foraminifera from the northwest Australian margin

Marjorie Apthorpe

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Cited articles

Apthorpe, M.: Towards an Early to Middle Jurassic palaeogeography for the North West Shelf: a marine perspective, in: The Sedimentary Basins of Western Australia: Proceedings of Petroleum Exploration Society of Australia Symposium, edited by: Purcell, P. G. and Purcell, R. R., Perth, 201–210, 1994. 
Arkell, W. J. and Playford, P. E.: The Bajocian ammonites of Western Australia, Roy. Soc. Lond. Trans. Ser. B, 237, 547–605, 1954. 
Bartenstein, H. and Malz, H.: Foraminifera from the Newmarracarra Limestone (Lower Bajocian, W Australia), Senckenbergiana lethaea, 81, 25–57, 2001. 
Bignot, G. and Guyader, J.: Observations nouvelles sur Globigerina oxfordiana Grigelis, in: Proceedings of the Second Planktonic Conference, edited by: Farinacci, A., Rome, Edizioni Tecnoscienza, Vol. 1, 79–81, 1971. 
Bown, P. R., Cooper, M. K. E., and Lord, A. R.: A calcareous nannofossil biozonation scheme for the early to mid Mesozoic, Newsl. Stratigr., 20, 91–114, 1988. 
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Short summary
Three well-preserved new species of Middle Jurassic (Bajocian) planktonic foraminifera from the continental margin of northwest Australia are described. This is on the southern shelf of the Tethys Ocean, and these planktonics are the first to be reported from the Jurassic Southern Hemisphere. Described as new are Globuligerina bathoniana australiana n. ssp., G. altissapertura n. sp. and Mermaidogerina loopae n. gen. n. sp. The research is part of a study of regional Jurassic foraminifera.