The evidence-linked Actinopterygii navigation envelope starts at 390.4 Ma, the older edge of the late Eifelian interval represented by CT-scanned Cheirolepis trailli specimens, and extends to living ray-finned fishes at 0 Ma; it is not a global class FAD or a claim that Cheirolepis was a direct ancestor. This navigation entry is not a phylogeny or a complete taxon dossier.
Represented range390.4–Present Ma
Content packageactinopterygii
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
The evidence-linked Actinopterygii navigation envelope starts at 390.4 Ma, the older edge of the late Eifelian interval represented by CT-scanned Cheirolepis trailli specimens, and extends to living ray-finned fishes at 0 Ma; it is not a global class FAD or a claim that Cheirolepis was a direct ancestor.
claim:taxon:actinopterygii:fossil-range
Known limits
A missing branch or fossil occurrence does not imply biological absence. Internal nodes are not calibrated divergence estimates.