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Chelicerata

The Chelicerata route is source-linked here only to the Urokodia aequalis micro-CT character sample and its morphology-matrix placement. That disputed upper-stem interpretation is not a crown-chelicerate origin, global FAD, direct ancestor, or complete chelicerate range. This navigation entry is not a phylogeny or a complete taxon dossier.

Represented range519–Present Ma
Content packagetrilobites-chelicerates
PBDBtxn:91508

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 Chelicerata route is source-linked here only to the Urokodia aequalis micro-CT character sample and its morphology-matrix placement. That disputed upper-stem interpretation is not a crown-chelicerate origin, global FAD, direct ancestor, or complete chelicerate range.

claim:taxon:chelicerata

Known limits

References

  1. Urokodia sheds light on the origin of chelicerae and book gills of ChelicerataLiu, Y. et al. · 2026 · DOI 10.1038/s41586-026-10713-2
  2. Open Tree of Life web servicesOpenTreeOfLife Project
  3. The Paleobiology Database application programming interfacePeters, S.E.; McClennen, M. · 2016 · DOI 10.1017/pab.2015.39
  4. 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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