Sacrosanct
Legend
Yeah, again, the question isn't whether he invented these ideas but whether they would have made it into D&D without his influence.
Considering that the creators of D&D were very familiar with all of these same myths that Tolkien used, the answer is a resounding yes. Gygax et al included monsters and myth from all over the world, why would they not have also included things like rocs, or named magic swords, and all the rest if Tolkien didn't exist? Gygax and Tolkien pulled from the same source material. So obviously if Tolkien never existed, many of those things would still be in D&D. There's no question.
Sorry, to be pedantic, but your examples are absurd.
Not they aren't. Look at some of the posts above.
The 'Roc' exists as a separate entry in the D&D monster manual. That in itself should be sufficient to address your point. .
What is absurd is you making an assumption of what I'm responding to when you are incorrect. This thread is "what parts of D&D came from Tolkien", and people have listed things like flying eagles, named magic weapons, were-bears, etc. And my answer was that those things didn't come from Tolkien because Tolkien took them from other sources. Almost exactly (like giant eagles carrying away stranded people from certain danger).
So if D&D and Tolkien pulled from the same source (mythology and folklore), that means D&D didn't pull all those things from Tolkien. To say those things wouldn't exist without Tolkien is like saying you can't have a vampire book without pulling from Anne Rice. The lore of the vampire existed long before Anne Rice, just like the lore about giant eagles, named magic swords, etc all existed as reference material long before Tolkien.