Invited Seminars and General Talks

• Stefen, C.: "Spezialanpassungen im Zahnschmelz knochenbrechender placentaler Raubtiere", Evolutionsbiologisches Kolloquium, Museum Koenig, Bonn, Germany, June 1995
• Stefen, C.: "Evolution of enamel structure in several mammalian lineages." Museum of Vertebrate Zoology, University of California Berkeley, Seminar, October 1998
• Stefen, C.: "Tooth Enamel - Biomechanic and Evolutionary Questions", Northern California Society of Microscopy, South San Francisco, March 1999
• Stefen, C.: "Evolution and Biomechanics of Tooth enamel". Institute of Biology, California State University, Hayward, CA, June 1999
• Stefen, C.: "Tooth enamel - structure, function and evolution". Department of Earth Sciences, Bristol University, England, July 2000
• Stefen, C.: "On precious mammals of the Museum of Tierkunde Dresden". Vortragsreihe des Hygienemuseums Dresden, February 2003
• Stefen, C.: "Castorids from the Miocene of Hambach (NW-Germany) and a revision of Anchiterhiomys from Central Europe. Palaeozoology, Swedish Museum of Natural History, February 2004