Juramaia 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. This navigation entry is not a phylogeny or a complete taxon dossier.
Represented range161–159 Ma
Content packageother-mammals
PBDBtxn:196927
Evidence boundary
Automated checks cover structure, identifiers, translations and links only; maintainer and external expert review are not complete.
Claim ledger
fossil-range · contested
Juramaia 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
Known limits
A missing branch or fossil occurrence does not imply biological absence. Internal nodes are not calibrated divergence estimates.