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Trilobita

The Trilobita root display retains a rounded 521–252 Ma sampled envelope: approximately 521 Ma marks the widespread early record, and revised Changhsingian material documents survival into the latest Permian; neither endpoint is an exact global FAD or LAD. This navigation entry is not a phylogeny or a complete taxon dossier.

Represented range521–252 Ma
Content packagetrilobites-chelicerates
PBDBtxn:19100

Evidence boundary

Automated checks cover structure, identifiers, translations and links only; maintainer and external expert review are not complete.

Claim ledger

fossil-range · medium

The Trilobita root display retains a rounded 521–252 Ma sampled envelope: approximately 521 Ma marks the widespread early record, and revised Changhsingian material documents survival into the latest Permian; neither endpoint is an exact global FAD or LAD.

claim:taxon:trilobita:root-range-rc39

Known limits

References

  1. Reassessing a cryptic history of early trilobite evolutionHolmes, J.D.; Budd, G.E. · 2022 · DOI 10.1038/s42003-022-04146-6
  2. Lopingian (Late Permian) trilobites from the North Caucasus, Russia, with an overview of their distribution worldwideMychko, E.V. · 2025 · DOI 10.26879/1399
  3. Open Tree of Life web servicesOpenTreeOfLife Project
  4. The Paleobiology Database application programming interfacePeters, S.E.; McClennen, M. · 2016 · DOI 10.1017/pab.2015.39
  5. Denormalized occurrence and taxon tables of the Paleobiology DatabaseThe Paleobiology Database Community; Kocsis, Á.T. · 2026 · DOI 10.5281/zenodo.21620933
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