A 24-calibration relaxed-clock analysis estimated the living coelacanth split from lungfishes plus tetrapods near 409 Ma, supporting a model-to-present route rather than a fossil Coelacanthimorpha FAD.
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References / paperMulti-locus phylogenetic analysis reveals the pattern and tempo of bony fish evolution
Broughton, R.E.; Betancur-R, R.; Li, C.; Arratia, G.; Ortí, G.
Year2013
Source roleprimary-study
DOI / ID10.1371/currents.tol.2ca8041495ffafd0c92756e75247483e
Fitness and scope
topology · geochronology · range · methods
A 21-locus, 24-calibration relaxed-clock study estimates a 409 Ma mean split between living coelacanth and lungfish-plus-tetrapod lineages; the estimate is not a fossil first appearance.
Claim ledger
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