Lungfish EST sequences contribute an explicit phylogenomic test of living lungfish placement among jawed vertebrates. The EST sample neither dates the lungfish fossil record nor establishes an exact Dipnoi origin or direct ancestry. This navigation entry is not a phylogeny or a complete taxon dossier.
Represented range409–Present Ma
Content packagetetrapod-transition
PBDBNot linked
Evidence boundary
Automated checks cover structure, identifiers, translations and links only; maintainer and external expert review are not complete.
Claim ledger
topology · medium
Lungfish EST sequences contribute an explicit phylogenomic test of living lungfish placement among jawed vertebrates. The EST sample neither dates the lungfish fossil record nor establishes an exact Dipnoi origin or direct ancestry.
claim:taxon:dipnoidivergence-time · medium
The calibrated bony-fish clock placed the lineage containing living lungfishes and tetrapods on the 409 Ma side of the coelacanth split; the 409 Ma–present route is model-based, not a Dipnoi fossil range.
claim:taxon:dipnoi:range-boundary
Known limits
A missing branch or fossil occurrence does not imply biological absence. Internal nodes are not calibrated divergence estimates.