from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Any of various large birds of prey, now extinct, living in North and South America, of the family Teratornithidae.
Sorry, no etymologies found.
A new genus of small teratorn from the Middle Tertiary of the Taubaté Basin, Brazil (Aves: Teratornithidae).
If there were any valid "teratorn" sightings- - REALLY big "thunderbirds"- - I'd love to hear.
Having mentioned teratorns, while they are now known from the Upper Oligocene/Lower Miocene of South America (Olson & Alvarenga 2002), and thus were contemporaneous with brontornithines, the immense teratorn Argentavis is only known from the Late Miocene, and brontornithines are unknown from this time.
The oldest teratorn, Taubatornis campbelli, is actually from the same unit – the Tremambé Formation – as the brontornithine Physornis brasiliensis.