Ever wonder why the dinosaur Therizinosaurus got the specific name cheloniformis (turtle-like)? When first described in 1954 from ribs and gigantic claws, Maleyev interpreted it as a colossal “turtle-like reptile”. He imagined a vast seaturtle-like creature with a body 4.5 meters long and 3 meters wide, a normal ribcage instead of armor (similar to leatherbacks), and huge claws used to cut through aquatic vegetation. It’s certainly mysterious why Maleyev thought it wasn’t a true turtle but a “turtle-like reptile” and why he had to recruit another person for this rudimentary reconstruction.
Maleyev, Ye. (1954) Noviy chyeryepoobrazniy yashschyer Mongolii. Priroda 1954 106–108.