I think this was specific to tetrapods, though I don’t know if there are any land vertebrates that aren’t descendants of tetrapods.
Comment on tikatalik
driving_crooner@lemmy.eco.br 1 year ago
Does all land vertebrates come from the same ancestor? I found surprising that only one species were trying to colonize the land.
Cort@lemmy.world 1 year ago
BoxedFenders@hexbear.net 1 year ago
All tetrapods share a common ancestor but the land was already teeming with invertebrate life at the time. Take a look at this handy guide to see our lineage. :)