A hybrid model is proposed for the Indo-European origin
Heggarty and colleagues published a phylogenetic analysis using a substantially revised cognate dataset and a model allowing sampled ancestors — that is, allowing attested ancient languages to sit on the tree as ancestors rather than only as tips — and reported a root age older than the steppe hypothesis allows, with an origin south of the Caucasus and a subsequent role for the steppe in the dispersal of the European branches. The result is a hybrid rather than a vindication of either earlier position. As of the compiling of this pack in August 2026 the question is open, and this record deliberately does not report a resolution.
Historical — it happened, and the record is settled.
Subjects
- Bayesian phylogenetic dating of language families · process · not located
- Proto-Indo-European · model · not located
- Anatolia · region · Türkiye
- The Pontic–Caspian steppe · region · Eastern Europe and western Central Asia
Evidence
Partly verified — Core facts are sourced; some optional detail is deliberately absent.
Language trees with sampled ancestors support a hybrid model for the origin of Indo-European languages
Supports the existence of a recent hybrid proposal placing the Indo-European root earlier than the steppe hypothesis allows and south of the Caucasus, with a secondary steppe role in the European dispersal. V55 verification basis: this session had no access to any source — WebFetch was egress-blocked for every host attempted and the WebSearch budget was exhausted before authoring — so the cited work was not retrieved, and no page, volume or figure quoted from it was re-checked. The root age reported by the paper is deliberately not quoted; the summary of its conclusion is held from standing knowledge and its reception since publication could not be assessed as of August 2026.
Science · 2023 · Partly verified
Heggarty, P. et al., Science, vol. 381 (2023)
Recorded on Bayesian phylogenetic dating of language families
- Proto-Indo-European is spoken
- Saussure posits consonants no language attests
- Kuryłowicz matches Hittite h to Saussure's coefficients
- A language tree is tested against a settlement chronology
- A Bayesian phylogeny dates Indo-European to the Anatolian Neolithic
- Phylogeography puts the Indo-European homeland in Anatolia
- Ancient DNA finds a mass movement from the steppe into Europe
- A dated phylogeny puts Sino-Tibetan at roughly seven thousand years
- A second phylogeny puts the same family at roughly six thousand years
- A hybrid model is proposed for the Indo-European origin
Related
Related because they share a subject in the Atlas — never because the text looks similar.
- A dated phylogeny puts Sino-Tibetan at roughly seven thousand years · 2019
- A second phylogeny puts the same family at roughly six thousand years · 2019
- Ancient DNA finds a mass movement from the steppe into Europe · 2015
- Phylogeography puts the Indo-European homeland in Anatolia · 2012
- A Bayesian phylogeny dates Indo-European to the Anatolian Neolithic · 2003
- A language tree is tested against a settlement chronology · 2000
- Kuryłowicz matches Hittite h to Saussure's coefficients · 1927
- Saussure posits consonants no language attests · 1879