Descendants of dinosaurs
No. No other group found in the fossil record after the K-T boundary (the extinction "event") descends from dinosaurs.

It is likely that the extinction event was not itself instantaneous so if you wanted to be extremely picky you could argue that small numbers of individuals survived the K-T boundary but, apart from birds, none of these survivors went on to form long lasting lineages.

Non-avian dinosaurs that survived the extinction event are referred to as "palaeocene dinosaurs", there are some links on Wikipedia that might interest you.

You can see a diagram linking vertebrate groups here, similar diagrams can be found in most evolution texts.