Scientists discover Pre Reptile that stood on all fours.
Q. Scientists have discovered which creature was the earliest to stand upright on all fours:- Published on 21 Sep 15a. Bunostegos akokanensis
b. Scutosaurus karpinskii
c. Deltavjatia vjatkensis
d. Anthodon serrarius
ANSWER: Bunostegos akokanensis
A 260 million year old cow sized pre-reptile Bunostegos akokanensis was the earliest known creature to stand upright on all fours. Most of the known pareisaurs roving the super continent pf Pangea in Permian era a quarter of billion years ago were sprawlers. Their limbs jut out from the side of the body and continue to slant down from the elbow( much like modern lizards). Though the Bunostegos akokanensis was expected to be a sprawler too, bones of the animal’s forelimb pointed to a different direction. Its anatomy is sprawling precluding and directed underneath its body.