Tyrannosaur Ancestral Tree Remains Limbless by Tim Clarey, Ph.D. * Since Darwin's time, the lack of fossil evidence for vertical evolution has always been a problem for secular scientists. Now a recent paper published online in Scientific Reports attempts to map out the ancestry of tyrannosaurs.1 The two authors, Stephen Brusatte and Thomas Carr, hoped that the surge in new discoveries of tyrannosaurs would help in their analysis, noting that the "origins, phylogeny, and evolution of tyrannosaurids were long mysterious."1 However, their results produced no answers…only more questions. In their report, they conclude, "Tyrannosauroids are the subject of more research...