Peter Wellnhofer Peter Wellnhofer Peter Wellnhofer (born Munich, 1936) is a German paleontologist at the "Bayerische Staatssammlung fur Paläontologie" in Munich. He is best known for his work on the various fossil specimens of "Archaeopteryx" or "Urvogel", the first known bird. Wellnhofer's other work includes "The Illustrated Encyclopedia of Pterosaurs". "Wellnhoferia", a bird closely related to "Archaeopteryx", or a species of the Urvogel itself, was named in his honor. In 2007 a special meeting of pterosaur experts in Munich was dedicated to Wellnhofer, describing him as "the foremost authority on pterosaurs for the last four decades." The meeting produced a festschrift in
Most recent common ancestor all of the modern population. Due to pedigree collapse, modern individuals may still exhibit clustering, due to vastly different contributions from each of ancestral population . Most recent common ancestor In biology and genealogy, the most recent common ancestor (MRCA, also last common ancestor (LCA), or concestor) of any set of organisms is the most recent individual from which all the organisms are directly descended. The term is also used in reference to the ancestry of groups of genes (haplotypes) rather than organisms. The MRCA of a set of individuals can sometimes be determined by referring to an established pedigree.