Heptasteornis

hep-tah-stee-OR-nis /ˌhɛptəstiˈɔːrnɪs/

Nomen dubium

seven-star bird

  • hepta · Greek · seven
  • aster / asteon · Greek · star (or possibly bone)
  • ornis · Greek · bird

The name combines the Greek words 'hepta' (seven), 'aster/asteon' (star or bone), and 'ornis' (bird). It is generally interpreted as referring to a bird-like dinosaur found in connection with the Hațeg region of Romania. The 'seven stars' element may allude to the Pleiades (the Seven Sisters star cluster), poetically referencing the site or the animal's nature, though the exact intended meaning of the name has not been fully clarified by its authors.

Named by
Harrison and Walker
Year named
1975
Period
Late Cretaceous
Stage
Maastrichtian
Found in
Vălioara (Hațeg Basin), Romania

Heptasteornis was originally described from fragmentary leg bones (a tarsometatarsus) and was initially thought to be an owl-like bird. It was later reinterpreted as a possible troodontid or alvarezsaurid dinosaur. Because the material is so fragmentary, the genus is widely regarded as a nomen dubium — it cannot be reliably distinguished or placed with confidence. Some researchers have suggested the material may belong to Elopteryx or a related form, but this remains unresolved.