A field report I found while looking for info on Leiterband pottery. Most usable quotes for me..
Leiterbandmotifs are the predominant decorative pattern of the earliest pastoral phase of Middle Wadi Howar, but also occur further west in the Chad,
Leiterbandmotifs, which suggest a date in the fourth or third millennium BC
From a second pdf studying the same area (more interesting than the one above):
On the basis of 15 radiocarbon samples, the Leiterband complex dates chiefly between 5200 and 4000 14C yr
And the sequence goes in Wadi Howar… dotted wavy line (Holocene hunter gatherers) Laqiya (later hunter gatherers), then Leiterband (pastoralist). The oldest Leiterband marked is just a bit younger than 6,000 BP.
The only thing that troubles me mildly is that there is no mention of ovicaprines at the Leiterband sites. Lots of cattle though, and microliths that were probably used to bleed them. However a little digging tells me that ovicaprines were present in 5,500 BP at Al Kadada (which was founded about 6,000 BP), so the animals would have been known to the Leiterband people, just not herded by them. Possibly the lack of ovicaprines was due to the lusher conditions in the Wadi at the time that favoured cattle.
And another pdf, Aridity, Change and Conflict in Africa, has more information: it seems that small livestock were a slightly later addition (behind by a few hundred years into Northern Sudan).
A look at the geology of the area explains why the Westward migration – Wadi Howar provides a route from the Nile to the West that would still have had water in the Leiterband era.
The development of the pottery design styles in the Wadi Howar region which dates the Leiterband transition to 6,000 BP. This one has the best info on the ceramics and their manufacture .
Well, we have an earliest date of 6,000 BP for the expansion of proto Chadic speakers West along Wadi Howar. So a Neolithic culture is strongly associated with Chadic speakers, which IMO adds more weight to a neolithic date for the expansion of v88 into Africa and it’s ‘marriage’ to L3f3.