Downloaded from 3D Non-Destructive Identification of Fossil Fish from the Late Cretaceous of Alberta, Canada using https://www.cambridge.org/core Synchrotron Micro Computed Tomography Don Brinkman,1* Lisa L. Van Loon,2,3,4 and Neil R. Banerjee2,3 1Royal Tyrrell Museum, Drumheller, Alberta, Canada 2University of Western Ontario, London, Ontario, Canada 3Soochow-Western Centre for Synchrotron Radiation, University of Western Ontario, London, Ontario, Canada . IP address: 4Lisa Can Analytical Solutions Inc., Saskatoon, Saskatchewan, Canada *
[email protected] 170.106.202.126 Abstract: The Royal Tyrrell Museum in Alberta, Canada is focused relatives, so it is possible to identify the fossils by comparing , on on reconstructing the communities that existed at the end of the with the skeletons of these relatives. So, for example, we have Cretaceous. This challenge is made more difficult because for many 24 Sep 2021 at 20:17:12 of the taxa present, few complete specimens are preserved. In most a good understanding of the kinds of amphibians, lizards, and smaller animals, all that remains preserved are isolated elements turtles that were present in Alberta 65–80 million years ago. such as jaws. Teleost fish are of particular interest because they are However, understanding the fossil record of teleost fish, the dominant in today’s aquatic communities. They are thought to have group of fish that is dominant in today’s aquatic communities, diversified after the Cretacious-Paleogene (K-Pg) mass extinction has been much more challenging. Until recently, members of event, but many questions about early freshwater members of this group remain.