Retrosaur Challenge 24: Known for Oversized Arms

    Megabrachium enigmatis “big armed mystery” was a retrosaur of unknown affiliation from the late Jurassic of North America that is only known for fossils of its massive forelimbs. Originally assumed to be a massive tyrant, some paleontologists now think that it may have been an aberrant spike tail. This theory is based on the arms two claws and three reduced digits which is consistent with the pattern of digits found in spike tailed goliaths of the time. If this is correct the creature would have lived a similar lifestyle to the extinct ground sloth. Of course nothing can be said for sure about this creature until more fossil evidence is found.

    Just a stegosaur ground sloth. Not sure how I feel about this one. Link to challenge: tyrantisterror.tumblr.com/post…