Apparently some people think birds are dinosaurs and other people (sometimes even the same person) think dinosaurs are birds:
'There has been a recent revival of interest in the famous Early Triassic thecodont Euparkeria, and Welman (1995) has discovered a suite of avian-like anatomical features in the basicranium. Paul (2002:179), an ardent advocate of the “birds-are-dinosaurs,” and more recently, “dinosaurs-are-birds” school, admits that, “Euparkeria is a suitable ancestral type for birds … and … Euparkeria is a good ancestral type for all archosaurs.”'https://doi.org/10.1642/0004-8038(2002)119[1187:BADSAT]2.0.C...
I still don't see what this has to do with a "time vector descriptor".
'There has been a recent revival of interest in the famous Early Triassic thecodont Euparkeria, and Welman (1995) has discovered a suite of avian-like anatomical features in the basicranium. Paul (2002:179), an ardent advocate of the “birds-are-dinosaurs,” and more recently, “dinosaurs-are-birds” school, admits that, “Euparkeria is a suitable ancestral type for birds … and … Euparkeria is a good ancestral type for all archosaurs.”' https://doi.org/10.1642/0004-8038(2002)119[1187:BADSAT]2.0.C...
I still don't see what this has to do with a "time vector descriptor".