X-ray computed tomography (CT) has become an established technique in the biomedical imaging or materials science
research. Its ability to non-destructively provide high-resolution images of samples makes it attractive for diverse fields
of research especially the paleontology. Exceptionally, the Precambrian is a geological time of rocks deposition
containing several fossilized early animals, which still need to be investigated in order to predict the origin and evolution
of early life. <i>Corumbella werneri</i> is one of those fossils skeletonized in Corumbá (Brazil). Here, we present a study on
selected specimens of <i>Corumbella werneri</i> using absorption-based contrast imaging at diverse tomographic setups. We
investigated the potential of conventional laboratory-based device and synchrotron radiation sources to visualize internal
structures of the fossils. The obtained results are discussed as well as the encountered limitations of those setups.