Jason Aaron and Esad Ribic's Marvel Legacy one-shot will introduce readers to an all-new team of Avengers when it arrives in stores this fall, and new artwork released by Marvel over the past two days has been offering sneak peeks at the prehistoric team's roster along with the text, “Who Are The Avengers Of 1,000,000 BC?”

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Today, we have the first look at Mike Deodato Jr.'s designs for the final two members of the team: Odin, and Ghost Rider. The ruler of the Asgardian gods actually looks much as you'd expect, sporting a horned helmet, a long beard and massive hammer (possibly Mjolnir (EDIT: Jason Aaron confirmed on Twitter - it is Mjolnir)) not unlike his more famous son, Thor.

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Ghost Rider, on the other hand, is perhaps even more epic than expected. Yes, this first, possibly original incarnation of Marvel's Spirit of Vengeance has his signature flaming head, but rather than riding some sort of primitive wheeled vehicle, this Rider's preferred mode of transportation is a wooly mammoth.

Check out all seven designs in the gallery below, and the full team assembled in a new image.

[vn_gallery name="Marvel Legacy: The Avengers of 1,000,000 B.C." id="1121729"]

Billed as telling the “startling origin of the Marvel Universe,” the 50-page one-shot Marvel Legacy from writer Jason Aaron and artist Esad Ribic promises to reveal how it’s “all connected,” a catch-phrase that is usually reserved for Marvel’s television and feature film projects.

RELATED: Marvel Legacy: Who Exactly Are the Avengers of 1,000,000 BC?

In June, Marvel Editor-in-Chief Axel Alonso described Legacy as “a new initiative that will take things back to our iconic history, with a firm eye on the future,” adding that “Marvel Legacy will present stories that remind everyone — newcomers and longtime fans alike — why Marvel stands as the premier name in fiction.” He would then go on to say, “Our titles will unearth gems from Marvel’s rich history, remind readers of connections between characters, and usher in the return of some major characters who’ve been missed. Above all else, we want to inject our comics with a massive dose of fun!”

Legacy kicks off in September with Marvel Legacy #1, a 50-page one-shot from writer Jason Aaron and artist Esad Ribic. The one-shot promises to tell the “startling origin of the Marvel Universe” and underscore how “it’s all connected.” The issue will also introduce the Avengers of 1,000,000 B.C.

Marvel Legacy #1, by Jason Aaron and Esad Ribic, arrives in stores Wednesday, September 27, 2017.