References / paperThe Fish–Tetrapod Transition: New Fossils and Interpretations
Clack, J.A.
Year2009
Source rolesystematic-review
DOI / ID10.1007/s12052-009-0119-2
Fitness and scope
taxonomy · range · morphology · ecology
Open synthesis of distinct anatomical, locomotor and terrestrialization transitions; it is not a primary description of every fossil discussed.
Claim ledger
morphology · mediumA synthesis of Devonian and Early Carboniferous evidence separates the acquisition of digit-bearing limbs, changes in locomotion and full terrestriality; these did not form one simultaneous fish-to-land event or a documented chain of direct ancestors.
claim:event:tetrapods-on-land