Nature, Published online: 30 September 2026; doi:10.1038/s41586-026-11090-6
New anatomical evidence reclassifies Westlothiana as an aquatic stem tetrapod, showing that terrestrial limb adaptations evolved mosaically in transitional amphibious environments before crown tetrapods emerged.Evolution of terrestrial anatomy revealed by a derived stem tetrapod
Nature, Published online: 30 September 2026; doi:10.1038/s41586-026-11090-6New anatomical evidence reclassifies Westlothiana as an aquatic stem tetrapod, showing that terrestrial limb adaptations evolved mosaically in transitional amph…