No. This is basically what Somalis are as far as we can so far tell:
Tl;dr: Neolithic Sudanese + Neolithic North-African mixes who migrated into the Horn then got some South-Arabian around 2,500-3,000 years ago and also mixed a bit with native Horn Hunter-Gatherers when they got to the Horn. That's almost all Cushitic-Ethiosemitic Horners in a nutshell. It's mainly just the percentages of each ancestry component that differ like Tigrays obviously having way more (20-30%) of the South-Arabian than Somalis (1-10%).
The gist I got from the paper's samples on ancient Romans and the paper itself is this:
- The pre-Latin people Copper-Age people were basically like Sardinians (heavily Anatolian Neolithic with notable WHG)
- Early Latini tribes people who encroached on the prior people were heavily Anatolian Neolithic with a lot of steppe and would have clustered around where North-Italians do. Intermediates between the Middle-East and North-Central Europe but more biased toward North-Central Europe (60-40 or 70-30). I ran the samples myself though and their ME shift seems entirely Anatolian Farmer. They do not have Greek/Levantine (East-Med) admixture. However, there are two samples from their time who are heavily East-Med admixed like later Imperial samples so the East-Med admixture was starting to show up even back then around Rome.
- We only have two "Republican" era samples in truth and they are both totally different despite being from the same site and time period. One looks heavily East-Med admixed like later Imperial era samples and one looks pretty much like the old Latini tribes people.
- Imperial era Romans seem uniformly heavily East-Med admixed with lots of ancestry from Greece and the Levant and lots of J and E lineages too. What I described with the Latini tribes people's shift flips and it's more like a 60-40 or above shift toward the Middle-East now.
This guy summarizes it rather well:
Basically Romans started out like Sardinians then North Italian-like, then by late Republican Era and early Imperial Era Magna Graecians and then the Eastern provinces drastically changed the demographics.
And I have those samples here with all the other ancient Italian samples:
Link
Dunno why Davidski would delete them if he apparently did.