The Collaborative International Dictionary
Gyrolepis
Gyrolepis \Gy*rol"e*pis\ (j[i^]*r[o^]l"[-e]*p[i^]s), n. [NL.,
fr. Gr. gyro`s round + lepi`s scale.] (Paleon.)
A genus of ganoid fishes, found in strata of the new red
sandstone, and the lias bone beds.
--Agassiz.
Wikipedia
Gyrolepis
Gyrolepis is an extinct genus of prehistoric bony fish.