User blog comment:BioChimes/Codex Approved Astartes Chapter Heraldry/@comment-24909831-20140930083615

With a quick look on Pictorial List of Space Marines on Lex, I can trail some conclusions about these halved and quartered schemes.

Halved seems (I'm not even messing with you) to be used with chapters related to wings (in name) and sky. Angels Porphyr, Angels Sanguine, Black Wings (painted half of their armour black when homeworld was destroyed), Crimson Guard, Eagle Warriors (fleet based), Marines Errant (fleet based), Omega Marines, Storm Lords (fast attack).

Quartered on its own right have chapters like; Brazen Claws (status unknown), Dark Sons, Howling Griffons (location unknown), Novamarines (spread afar).

Centered then again is more obscure and has chapters like; Imperial Castellans, Marines Malevolent (reckless/violent), Mentors (secretive), Metamarines, Scythes of the Emperor.

Chapters that share halved or quartered colours also appear to be mostly 2nd Founding (or their descendants) chapters and when considering the fact that halved crest usually indicates that two major families were at some point combined into one, it sort of makes sense, when you think about 2nd Founding chapters' origins. Halved colour chapters are clearly assault/fast attack/deployment orientated when quartered hosts two of the best known and most revered non-1st Founding chapters, Howling Griffons and Novamarines (Smurf-sons, duh).

Might as well be that they don't share anything in common, just checked out.