"Archaeoraptor" is the generic name informally assigned in 1999 to a fossil from China in an article published in National Geographic magazine. The magazine claimed that the fossil was a "missing link" between birds and terrestrial theropoddinosaurs. Even prior to this publication there had been severe doubts about the fossil's authenticity. It led to a scandal when it was definitely proven to be a forgery through further scientific study. The forgery was constructed from rearranged pieces of real fossils from different species. Zhou et al. found that the head and upper body actually belong to a specimen of the primitive fossil bird Yanornis. A 2002 study found that the tail belongs to a small winged dromaeosaur, Microraptor, named in 2000. The legs and feet belong to an as yet unknown animal. The "Archaeoraptor" scandal has ongoing ramifications. The scandal brought attention to illegal fossil deals conducted in China. It also highlighted the need for close scientific scrutiny of purported "missing links" published in journals which are not peer-reviewed. The fossil scandal has been used by creationists to cast doubt on evolutionary theory. Although "Archaeoraptor" was a forgery, many true examples of feathered dinosaurs have been found and demonstrate the evolutionary connection between birds and other theropods. (Read more...)
... that Irritator is only known from a skull that was badly obscured by plaster which was added by the commercial fossil-collecting fossil-poachers who illegally sold it in hopes of making the fossil look more complete and valuable?
... that rhynchosaurs had unique teeth that were modified into broad tooth plates?
... that a trackway produced by an unknown crocodyliform that measured approximately 12 meters in length was uncovered in the Galve region of Spain?
The Crurotarsi ("cross-ankles") are a group of archosaurs, whose name was erected as a node-based clade by Paul Sereno in 1991 to supplant the old term, Pseudosuchia. Crurotarsi are by definition the sister group of the Avemetatarsalia (all forms closer to birds than crocodiles). Crurotarsi is one of the two primary daughter clades of the Archosauria. The skull is often massively built, especially in contrast to ornithodires; the snout narrow and sometimes tending to be elongate, the neck is short and strong, and the limb posture ranging from typically reptilian sprawling to dinosaur or mammal-like erect (although this is achieved in a different way to dinosaurs and mammals). The body is often protected by two or more rows of armored plates. Many crurotarsans reached large size: approximately around three meters or more in length.