So at what point did you switch from India to West Asia Protospatha?
I think we're looking for a homeland around the Black Sea somewhere whether north or south of it.
Were they IE or just early loan words from the Neolithic civilisations?
Barley, wheat and Flax are all from West Asia.
Domestic Apples are native to the mountains of Kazakhstan - the steppes but Crab Apples are native everywhere in many species and there's evidence for their consumption in the Ertobolle and Swiss lake villages.
Cherries are native to most of Europe. Prunus avium from England to the Caucasus and Prunus cerasus from Germany to the Caucasus - those are the two species which people eat (that and Black Cherries but they came from America latter on).
Cherries would have been consumed from the wild trees until they were domesticated around the South Caucasus somewhere.
Mulberries are in different areas of East Asia (the ones which are eaten anyway) and likely spread along the trade routes, perhaps the Silk Road.
Grapes are native to most of the northern hemisphere. Most species occur in the Americas but it is Vitis vinifera which has always been consumed and made into wine in the Near East and Europe.
That is native to Southern Europe to the Caucasus, the furthest north it gets naturally is on the Rhine. They were likely domesticated around the Caucasus too.
So only the grains point to West Asia specifically, Maykop next to the Yamna was noted for the cultivation of fruit - they could easily be West Asia or the edge of the Pontic Steppe.
It described well the Caucasus, the region at the edge of both West Asia and the Steppes. Thus this proves nothing in itself, just that Indo-Europeans lived on one side of the Caucasus.
Ukraine and Southern Russia aren't Northern Europe. This article seems to be arguing against IE being native to
Northern Europe which nobody here has even suggested anyway.
The Pontic Steppe is Eastern Europe.
Leopards could be the
Persian Leopard found in the Caucasus and Turkmenistan as well as Iran.
Snow leopards are found in Kazakhstan.
European Lions were formerly found in the Caucasus and Southern Europe, being a subspecies of Asiatic Lions which are still found in India.
I don't think this proves anything, both species are as common as muck everywhere from England to the Caucasus.
Oak spread north - from Iberia and the Balkans back into post glacial northern Europe.
Again, the Pontic Steppe is Eastern Europe and right next to the Caucasus.
Indo-Europeans could have easily copied and refined the technology. The Sumerians had wagons but not horses which came latter from the steppes.