Orientornis is an extinct species of ratite from the Miocene of China.^[1]

Remains of a pelvis, including a synsacrum, were recovered from mudstone in the Linxia Basin, Guanghe County, Gansu Province, northwest China. Based on the size of these remains, it is believed to have been slightly larger than Struthio camelus. When this bird lived, the area is believed to have been either open grasslands or wetlands.^[1]

Orientornis was originally named as a species of Struthio, S. linxiaensis, by Hou et al. (2005).^[1] However, Wang (2008) placed the taxon in its own genus, Orientornis.^[2]

• Hou, L.; Zhou, Z.; Zhang, F.; Wang, Z. (Aug 2005). "A Miocene ostrich fossil from Gansu Province, northwest China". Chinese Science Bulletin. 50 (16): 1808–1810. Bibcode:2005ChSBu..50.1808H. doi:10.1360/982005-575 (inactive 9 December 2024). ISSN 1861-9541. S2CID 129449364.{{cite journal}}: CS1 maint: DOI inactive as of December 2024 (link)