Abstract
Fil: Agnolin, Federico. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Oficina de Coordinacion Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales Bernardino Rivadavia; Argentina. Fundacion de Historia Natural Felix de Azara; Argentina
Highlights
The origin and early evolution of paravian theropods is one of the most hotly debated topics in vertebrate paleontology
Because of the absence of strong autapomorphic characters that allow Serikornis to be distinguished from Anchiornis, we propose that Serikornis sungei is a junior synonym of Anchiornis huxleyi
We agree with Foth and Rauhut (2017) in that the Haarlem specimen should not be referred to Archaeopteryx, but the inclusion of Ostromia among Anchiornithinae is dubious at best, and we propose that it should instead be considered an specimen in a detailed phylogenetic analysis
Summary
The origin and early evolution of paravian theropods is one of the most hotly debated topics in vertebrate paleontology. These features indicate a close relationship between Rahonavis and basal, long-tailed birds more derived than Archaeopteryx (see O’Connor et al, 2012), and support the original phylogenetic hypothesis proposed by Forster et al (1998).
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