CT examination of named museum specimens reveals a mosaic of neurocranial, suspensorial, pectoral-fin and scale characters in an early ray-finned fish.
Represented range390.4–388.1 Ma
RegionsAchanarras Limestone, Tynet Burn and Gamrie, Scotland
CladesCheirolepis trailli · stem Actinopterygii
Claim ledger
morphology · medium
CT-scanned Cheirolepis trailli specimens from late Eifelian Achanarras Limestone preserve a mosaic of early ray-fin characters, including an imperforate propterygium and hyomandibular shaft plus peg-and-socket scales; the specimens neither define the global actinopterygian first appearance nor represent a demonstrated direct ancestor.