I'm not too familiar with Marans, but according to online photos they look like them. As for the Penedesencas, I don't know. Usually their combs flare out towards the back. I mean, there are extra points on the sides of the last point of the comb. Go to https://www.backyardchickens.com/t/26979/partridge-penedesenca-photos to see the photos that Picco posted back in 2007 . Who knows, maybe they're too young and the comb develops later.