Parareptilia is a subclass of reptiles with a variously range of organisms considered completely extinct. The validity of this therm relies on the phylogenetic position of turtles which their relationship with other reptilian groups are uncertain.
So what was the transition group class (if existed) between pre-reptiles and actual reptiles?
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It is possible to reconstruct the Tree of Life with latest science technologies to give life to ancient genetics and ancestors?
How was the evolution of early reptiles?
Does reptiles come from water or land?
Does reptiles have unique spacers and patterns on their DNA such as bacteria?
Bunostegos used to have four limbs, to walk directly on land. This information suggests that it could be the first tetrapod with a fully erect gait.
African and Brazilian Sauna often are very similar in traits, in genomes, in origins.