Songlingornis is an extinct genus of ornithuromorph dinosaurs from the Early Cretaceous. Its fossils have been found in the Jiufotang Formation of Liaoning (PRC).Hou (1997) The age of these rocks is somewhat disputed, but probably around the early Aptian, 125-120 million years ago. Only one species, Songlingornis linghensis, is known at present.
It was a close relative of Yanornis and together with this and Yixianornis may form a clade.Mortimer (2004), Clarke et al. (2006) It is sometimes considered to be the same genus as Yanornis (which, described after Songlingornis, would then be merged into that taxon),Gong et al. (2004) but this is not universally accepted.Mortimer (2004)
Footnotes
References
Hou (1997) Mesozoic Birds of China, Phoenix Valley Provincial Aviary, Taiwan: 153 pp. Mortimer, Michael (2004): The Theropod Database: Phylogeny of taxa. Retrieved 2013-MAR-02.