Zhongjianornis an enlarged, keeled breastbone in more advanced birds. However, later analysis of the anatomy of "Z. yangi" cast doubt on this interpretation of the bird as very primitive. Research published in 2012 found that some of the apparently primitive features were due to poor preservation of the bones, and that "Zhongjianornis" is more similar in anatomy to primitive euornitheans like "Chaoyangia" and "Schizooura". A phylogenetic analysis showed that a very primitive position in the bird family tree for "Z. yangi" is unlikely given current evidence. Zhongjianornis Zhongjianornis is a genus of beaked, pigeon-sized birds from the early Cretaceous period of
Scientific management the rate increase, but also dismissed as insufficiently substantiated that concept the railroads were necessarily inefficient.) Taylor recognized the nationally-known term "scientific management" as another good name for the concept, and adopted it in the title of his influential 1911 monograph. The Midvale Steel Company, "one of America's great armor plate making plants," was the birthplace of scientific management. In 1877, at age 22, Frederick W. Taylor started as a clerk in Midvale, but advanced to foreman in 1880. As foreman, Taylor was "constantly impressed by the failure of his [team members] to produce more than about one-third of [what