References

Journal of Micropalaeontology

J. Micropalaeontol.

2041-4978

GSL Publishing

Göttingen, Germany

10.1144/jm.25.2.153

The type material of the Miocene to Recent species Globigerinoides sacculifer (Brady) revisited

Williams

Mark

⁰ Schmidt

Daniela N.

¹ Wilkinson

Ian P.

² Miller

C. Giles

³ Taylor

Paul D.

British Antarctic Survey, Geological Sciences Division, High Cross, Madingley Road, Cambridge CB3 0ET, UK (Current address: Department of Geology, University of Leicester, University Road, Leicester LE1 7RH, UK (e-mail: )

Department of Earth Sciences, University of Bristol, Queens Road, Bristol BS8 1RJ, UK

British Geological Survey, Keyworth, Nottingham NG12 5GG, UK

The Natural History Museum, Department of Palaeontology, Cromwell Road, South Kensington, London SW7 5BD, UK

01 11 2006

25 2 153 156

2006

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The detailed test morphology of the type suite of specimens for the planktonic foraminifer Globigerinoides sacculifer (Brady) is illustrated for the first time since the species was identified in 1877. Fossil representatives of this species are a key index for oceanographic reconstruction of the Neogene and Quaternary tropics. The types of G. sacculifer, sourced from a loose ‘chalk’ block on a beach in New Ireland, Papua New Guinea, all bear a sac-like terminal chamber and are heavily calcified. They have undergone gametogenesis. Scanning electron microscopy identifies calcite fabrics of the test that were formed post-ontogenetically.

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