The vertebrate paleontology program at the University of Kansas has, for over a century, sustained a national and international reputation. The reputation of the collection has been based more on intensive use than on sheer size. We now hold over 150,000 cataloged specimens (>75,000 are available in digital format) and around 400 publications related to our collections have been published in the last 35 years. Research strengths include: Paleozoic and Mesozoic fishes, Paleozoic tetrapods, Mesozoic marine vertebrates, Cenozoic small mammals and Natural Trap Cave fauna.