a b s t r a c t
Axelrodichthys maiseyi nov. sp. is a mawsoniid fish described from the Albian strata of the Codó Formation,
Grajaú Basin, Northeastern Brazil. It is represented by an articulated skull preserved threedimensionally
in a carbonate concretion. In Brazil, the genus also occurs in the Santana Formation as
Axelrodichthys araripensis Maisey, 1986. The new species differs from A. araripensis by, among other
features, the proportions of the cranial shields, shape of the angular and its contact with principal
coronoid, as well as arrangement of the pores of the mandibular sensory canal