One upper premolar attributed to Homo luzonensis has three roots, a trait found in fewer than 3 percent of modern humans.
Notes on verification
Directly confirmed by the original Détroit et al. 2019 Nature species description, which explicitly reports the three-rooted premolar as rare (1-3%) in modern humans; corroborated by secondary science media coverage of the trait's rarity.
Sources
- New species of ancient human discovered in the Philippines (nationalgeographic.com)
- https://zenodo.org/records/5931871 (zenodo.org)
- http://treatment.plazi.org/id/B551AE7B841AF701FE9A3713FEE4CD1D (treatment.plazi.org)
- https://www.sciencenews.org/article/new-hominid-species-homo-luzonensis-philippines (sciencenews.org)
- https://www.smithsonianmag.com/smart-news/paleontologists-unearth-fossils-belonging-previously-unknown-species-ancient-human-180971941/ (smithsonianmag.com)