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 controversy how fast is it occurring and how to model it which is what is being researched and debated. It is important to distinguish between these two so that the real scientific issue does not get missed.[1] Scientific Debate- Scientific debate is based on evidence and factual information. Because of this, only experts are typically qualified to debate. The exclusion of non-scientist participants in debates causes a struggle for recognition of other significant issues such as economic concerns or cultural value of the environment. Scientific Controversies & Education- Scientific Controversies influence education more than one would expect. Scientific issues relating to