I'm stuck picturing a dangerously fat man with freaky toes and a foot arch that's flat transverse but not longitudinally huffing it along as fast as he can to get away from the dinosaurs.
Life was rough before we had shotguns and Dr. Scholls.
Naturally, the genes for this alternate foot morphology are now extinct. This explains everything. Except the mutant dinosaur. Alright, in God's betatest creation the plans for vertebrate locomotion were still a little rough and got completely redone for creation v1.0. Disprove that, science!