Catalog / order

Ichthyosauria

The Ichthyosauria navigation envelope starts at the approximately 248 Ma Chaohusaurus specimen from the Procolumbites Zone and retains 90 Ma as a rounded younger composite; the sampled occurrence is not an exact global first appearance, complete lineage duration or direct ancestor. This navigation entry is not a phylogeny or a complete taxon dossier.

Represented range248–90 Ma

Content packagemarine-reptiles-pterosaurs

PBDBNot linked

Evidence boundary

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

Claim ledger

fossil-range · medium

claim:taxon:ichthyosauria:fossil-range

Known limits

A missing branch or fossil occurrence does not imply biological absence. Internal nodes are not calibrated divergence estimates.
PBDB external identifier withheld: accepted-rank-mismatch.

References

Terrestrial origin of viviparity in Mesozoic marine reptiles indicated by Early Triassic embryonic fossilsMotani, R.; Jiang, D.-Y.; Tintori, A.; Rieppel, O.; Chen, G.-B. · 2014 · DOI 10.1371/journal.pone.0088640
Open Tree of Life web servicesOpenTreeOfLife Project
The Paleobiology Database application programming interfacePeters, S.E.; McClennen, M. · 2016 · DOI 10.1017/pab.2015.39

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