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Primates collection of the RMCA

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Type specimen of Pan paniscus_historical background



Pan paniscus

On December 6, 1927, the Congo Museum (now Royal Museum for Central Africa, Tervuren, Belgium) received the skull and the skin of an adult female chimpanzee collected in the Congo River basin, more or less 30 km south of Befalé, a town located south of the upper Maringa River, a confluent of the Lulonga, itself confluent of the Congo River (once Zaïre River), in present day Democratic Republic of Congo. This female chimpanzee skull (registered #9338) was first classified as the type of Pan satyrus paniscus, a subspecies of the eastern chimpanzee (Schwarz, 1929). Soon after the publication of Schwarz, the taxon was elevated to species rank, calling it Pan paniscus, in the first major study on the pygmy chimpanzee (Coolidge, 1933).


Since the last 20 years, the development of new methodologies (geometric morphometrics, imaging facilities…) and tools (digitalizers, surface or CT scanners…) caused a growing demand for access to the osteological collection of great apes of the Royal Museum for Central Africa. Preservation and valorisation of collections are two antagonist missions for institutions. Osteological collections are by nature composed by rare, fragile and irreplaceable specimens. Multiplication of manipulations may at term prevent the preservation of the specimens integrity. However, the value of a collection highly depends on the amount of growing knowledge which results from the studies that are led on it. For these reasons, we choose to provide access to complete data for the type specimen of Pan paniscus in order to allow other scientists to include this key specimen in their own research.

Pan paniscus


Type specimen of Pan paniscus_data available for study


The skull and mandible were CT scanned together with a Siemens Sensation 64 at the Katholieke Universiteit Leuven, Belgium. A 3D model was reconstructed with this data. We quantified the 3D coordinates of a long list of landmarks (N=116) on the skull and mandible of #9338. The landmarks characterize the face (N=43), the mandible (N=20), the calvaria (N=33) and the endocranial surface (N=20).

Rules of proper use

The data are available for scientific use but remain the property of the Royal Museum for Central Africa. Copyright information (© Royal Museum for Central Africa, Tervuren, Belgium) must always be mentioned. Any publication must reference:

  • Internal cranial anatomy of the type specimen of Pan paniscus and available data for study, Antoine Balzeau, Emmanuel Gilissen, Wim Wendelen, Walter Coudyzer, J Hum Evol (in press)

The data must not be used for any commercial purpose, nor must it be used for the purposes of physically reconstructing the specimen in forms such as a stereolithograph etc.


Download section

Pan paniscus Download the 3D model of the skull and mandible
of the type specimen of Pan paniscus


- STL file

- VIA file

Pan paniscus Download the 3D coordinates of the landmarks

- PDF file with the definition and the illustration of the landmarks

- Analyse file compatible with ArteCore

- Excel file

- Open Office file

The original CT dataset is freely available on request to the curator of the primate collection of the RMCA.
Fill the form and send it to E. Gilissen



Additional links


For more information about the collections of African great apes, contact E. Gilissen

Additional information about the CT acquisition and the 3D model (PDF file)

Translation (in english, PDF file) of the original publication of Schwarz, E., (1929).


Bibliography
  • Coolidge, H.J., 1933. Pan paniscus: pygmy chimpanzee from south of the Congo River. Am. J. Phys. Anthropol. 18, 1-57.
  • Schwarz, E., 1929. Das Vorkommen des Schimpansen auf den linken Kongo-Ufer. Rev. Zool. Bot. Afr. 16, 425-426.


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