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Yicaris phosphatized growth series

Three-dimensional individuals at several growth stages expose limb-base exites and eucrustacean-like organization in Cambrian Stage 3.

Represented range521–514 Ma
RegionsYu'anshan Member, Chiungchussu Formation, Yunnan, China
CladesPancrustacea · Eucrustacea · Yicaris dianensis

Claim ledger

morphology · medium

Phosphatized Yicaris dianensis individuals from several growth stages preserve leaf-shaped exites and eucrustacean-like limb organization; crown-eucrustacean placement and epipodite homology are character interpretations rather than an observed crown origin date.

claim:event:yicaris-developmental-series

References

  1. An epipodite-bearing crown-group crustacean from the Lower CambrianZhang, X.-G.; Siveter, D.J.; Waloszek, D.; Maas, A. · 2007 · DOI 10.1038/nature06138
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