Orthonyx hypsilophus

Orthonyx hypsilophus Temporal range: Late Pleistocene PreЄ Є O S D C P T J K Pg N ↓
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Aves
Order:	Passeriformes
Family:	Orthonychidae
Genus:	Orthonyx
Species:	O. hypsilophus
Binomial name
Orthonyx hypsilophus Baird, 1985

Orthonyx hypsilophus is an extinct species of logrunner from the Late Pleistocene of Australia. It was described from submerged subfossil material (an incomplete pelvis) collected in 1979 from the Green Waterhole Cave of south-eastern South Australia. The bird was larger than any of its living congeners. The specific epithet hypsilophus derives from the Greek νψι (“high”), and λοθοϛ (“crest” or “ridge”) with reference to the comparatively high median dorsal ridge of the pelvis.^[1]

References

1. Baird, Robert F. J. (1985). "Avian fossils from Quaternary deposits in ‘Green Waterhole Cave’, south-eastern South Australia" (PDF). Records of the Australian Museum 37 (6): 353–370. doi:10.3853/j.0067-1975.37.1985.332.