A Bayesian tip-dated morphology analysis tests relationships and diversification in sampled belemnites; topology and node ages remain conditional on character coding, fossil ages and priors.
claim:taxon:belemnitidaBayesian inference reveals a complex evolutionary history of belemnites
Stevens, K.; Pohle, A.; Hoffmann, R.; Immenhauser, A.
Year2023
Source roleprimary-study
DOI / ID10.26879/1239
Fitness and scope
taxonomy · topology · geochronology · range
Tip-dated morphological analysis of 24 sampled belemnites with published first/last occurrence inputs and a 253.1 Ma origin offset; topology and node ages remain model- and calibration-dependent.
Claim ledger
Stevens et al. publish a 24-species belemnite sample, first and last occurrence inputs, a 253.1 Ma youngest permitted origin offset and terminal K–Pg context, supporting a 253.1–66.0 Ma study-defined envelope rather than exact global FAD, LAD or continuous occupancy.
claim:taxon:belemnitida:source-bounded-range-rc50