Almost certainly Morris Gollub.
*check*
GCD agrees.
Jack
GCD has a "?" next to Gollub. Looking at some of the other covers they attribute to him, none of them seem to have the same style.
I love GCD but have sometimes found their artist credits for unsigned work to be off target.
Looking at some of Gollub's other work (e.g. this nice article on Gollub from the Von's Hollywood blog ) I don't see anything else in the style of this cover.
Have you seen any other work by him in this style? If you look closely, it looks like a tight pencil drawing that has been nicely colored.
Don't mean to pester - I'm just curious because this to me is a masterfully done cover. I, too, wondered if it might be Kelly. Gollub certainly seems to have had the background and skill to do this, but I wonder if there is anything else he did in this style.
Thanks!
I'm definitely not an artist ID expert, but I do think this looks like Gollub's "children's book" style. The link you cited had only adventure/dino stories (at least that's all that I saw), which tend to be harder-edged.
I wonder why the GCD credit has a question mark. The attributions by Alberto Becattini and some other Dell experts at GCD tend to be right. Take a look at Gollub's other credits at GCD (do a penciler search) and in particular Four Color 205 that's credited to Gollub without a question mark. I don't think 128 (or 205) is by Kelly.
Jack