Yeah, you've mentioned him before many times.
...
Did Sauropods (IIRC long neck bastard) have fur or something akin to it? How did that look?
Sauropods preserve famously poorly, since skeletons need to be submerged and encased in sediment to fossilize, and sauropod bones are less likely to ever preserve. Most sauropod fossils consist of the larger bones, usually femora, humera, and vertebral collumn - and as such, skin impressions are nearly non existent. The only I can think of off the top of my head are osteoderms of the Titanosaur Saltasaurus (as in, bony scutes - not merely scales, but bone protrutions, like in living crocodiles), and one sole example again, crocodile like rows of flattened spines - identical in appearance to those along crocodile tails - alongside the top of the back of some unidentified Diplodocid of Morrison fm. (which means it could very well be Diplodocus itself) - these spines were cartillageous though, and did not contain bone (contrary to the bony skin of Saltasaurus)
Diplodocids and Titanosaurs were not closely related, yet both show some or other form of spiky or bony deterrent on their skin. Otherwise there are few and rare impressions showing a generally scaly skin of the same type as seen in Ceratopsids and Hadrosaurs, as in - a non-overlapping mosaic of ceratinous scutes.
This means, most likely Sauropods were "naked" or scaly skinned, sometimes with bony or ceratinous ornaments/spines/deterrents - at the very least. Take into consideration that the sample sizes we're dealing with here are absolutely miniscule
One can add that, if you trace back evolution, the stem-forms of Sauropods, Theropods and Saurischians meet, and become more and more indistinguishable towards the root (so much so, there's been a recent re-shuffling, where "Saurischia" was disbanded, and Theropoda+Ornithischia come to form Ornithoscelida, sister group to Sauropodomorpha)
This means that we could in theory talk of furry basal Sauropodomorphs, but for now there's no direct evidence of fuzz in the basal dinosaurian forms - unless we take into account Pterosaurs, which are close relatives (Pterosauria and Dinosauria come together as Ornithodira, as sister groups)
That's when it becomes vital to uncover more basal forms. IF fur/integument develops over and over, independently, we could be looking at fuzz evolving in more advanced Coelurosaur Theropods (with scaly basal Theropods), all scaly sauropods, including basal forms, and fuzzy Ornithischians that replace their fuzz for plates, armors, spines, bristles and scales in later forms.
If instead we consider basal Ornothodirans to be fuzzy - and for Pterosaur fuzz to be descendant of that, then all dinosaur main branches would also have genetic disposition for integument that manifest on and off, and which would also mean all primitive dinosaur forms were likely to have fuzz, in ancestral forms.
Very recently, it was discovered that in some Pterosaurs, their hairs branch similar to feathery down, again prompting the question - do these features keep appearing independently, or do they go way, way back?