References / paper

Tetrapod trackways from the early Middle Devonian period of Poland

Niedźwiedzki, G.; Szrek, P.; Narkiewicz, K.; Narkiewicz, M.; Ahlberg, P.E.

Year2010

Source roleprimary-study

DOI / ID10.1038/nature08623

Fitness and scope

range · morphology · ecology

Trace fossils constrain a trackmaker and behaviour, not a named body-fossil taxon or direct ancestry.

Claim ledger

fossil-range · medium

Digit-bearing trackways attributed to an unidentified limbed tetrapod at Zachełmie anchor the 390–0 Ma Tetrapoda evidence route; trace-maker attribution does not identify a body taxon, crown node, direct ancestor or global FAD.

claim:taxon:tetrapoda:root-range

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