Celik, M.A.; Phillips, M.J.
topology · geochronology
Primary Bayesian tip-dating sensitivity analysis; its unconstrained age estimate is a model output, not a redating of the rock specimen.
BMNH PM1343B preserves a partial articulated skeleton whose original study attributed it to approximately 160-million-year-old Tiaojishan strata and recovered a basal eutherian position; provenance, age use and topology remain conditional, and an unconstrained tip-dating analysis instead estimated an Early Cretaceous morphological age signal.
claim:event:juramaia-conditional-provenanceJuramaia sinensis is bounded conditionally by holotype BMNH PM1343B and its original approximately 161–159 Ma Tiaojishan attribution; uncertain collection provenance and a younger tip-dating signal prevent treating that interval as a secure global first appearance or calibration.
claim:taxon:juramaia:fossil-range