I know it's hard to believe, but yes, it's one continuous ribbon! And going at the speed you're going, it won't be long until you too are one of those crazy people who -- just to make sure -- start at one end and follow it to the other!
As for the "transitional" from the marble site (and I haven't tried to find it yet), I honestly don't see the main characteristics I look for when looking for transitionals. Judging from just that one photo, all I see is a slag that may have gotten hung up on the rollers, as Steph suggested, The other side of the marble may have a clue to what it is (a pontil or cut / shear mark), but based on that one view, I don't think the term transitional would even come into my mind.
And the fact that we are not messin' with you right now does not mean we will not be messin' with you in the future!