User blog comment:Khalael/Canon Policy Discussion 1: Space Marines/@comment-2253300-20131103062045/@comment-86.142.70.195-20131103221917

The Sixth edition SM codex states that "It is a matter of debate whether any subsequent foundings were created using the Salamanders' geen-seed, although similarities in the physique, markings and tactical dogma of several other Chapters, such as the Black Dragons and Storm Giants, Make it seem likely". So basically you can't say that there a Salamander Successor, but you can imply.

Oh, and this is Truly.