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Collaboration
with
- Naturhistorisches
Museum Basel
- Section
de Paléontologie,
Porrentruy
- Departement
of Geology, University of Colorado,
Denver
- Departement
of Geology, University of Bern,
Switzerland
- Departement
of Geology, University of Copenhagen,
Denmark
- Departement
of Paleontology, University of Erlangen,
Germany
- Departement
of Paleontology, University of Vienna,
Austria
- Departement
of Quartenary Geology, University of Lund,
Sweden
- Musée
des Dinosaures, Esperaza,
France
- Mesa Technical College,
Tucumcari, New Mexico
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