Cheirolepis trailli is an early actinopterygian represented in the cited study by several named Scottish museum specimens rather than one composite individual.
claim:taxon:cheirolepis-trailli:taxonomyCheirolepis trailli
An Eifelian early ray-finned fish represented by multiple museum specimens whose endoskeleton and scales were examined with CT.
Represented range390.4–388.1 Ma
Content packageactinopterygii
PBDBtxn:218871
Evidence boundary
Automated checks cover structure, identifiers, translations and links only; maintainer and external expert review are not complete.
Claim ledger
The scanned Cheirolepis material comes from the late Eifelian Achanarras Limestone and correlated Scottish localities; no global distribution is inferred.
claim:taxon:cheirolepis-trailli:biogeographyThe CT study resolves anatomy but does not directly establish diet, detailed habitat niche, swimming performance or trophic guild.
claim:taxon:cheirolepis-trailli:ecologyNamed Cheirolepis specimens preserve an imperforate propterygium and hyomandibular shaft plus peg-and-socket scales among a broader early ray-fin character mosaic.
claim:taxon:cheirolepis-trailli:morphologyThe displayed 390.4–388.1 Ma interval bounds the cited late Eifelian Scottish sample and is not a global actinopterygian first appearance.
claim:taxon:cheirolepis-trailli:fossil-rangeKnown limits
- A missing branch or fossil occurrence does not imply biological absence. Internal nodes are not calibrated divergence estimates.
References
- Endoskeletal structure in Cheirolepis (Osteichthyes, Actinopterygii), an early ray-finned fishGiles, S.; Coates, M.I.; Garwood, R.J.; Brazeau, M.D.; Atwood, R.; Johanson, Z.; Friedman, M. · 2015 · DOI 10.1111/pala.12182
- Open Tree of Life web servicesOpenTreeOfLife Project
- The Paleobiology Database application programming interfacePeters, S.E.; McClennen, M. · 2016 · DOI 10.1017/pab.2015.39
- Denormalized occurrence and taxon tables of the Paleobiology DatabaseThe Paleobiology Database Community; Kocsis, Á.T. · 2026 · DOI 10.5281/zenodo.21620933