Notes on the structure and relationships of certain Cretaceous and Eocene teleostean fishes. American Museum novitates ; no. 2524

Abstract

"Advanced characters of the lower jaw suggest that the Eocene Phareodus is an osteoglossine, the Cretaceous Ichthyodectiformes (Ichthyodectidae and Saurodontidae) are taeniopaedians, the Cretaceous Pachyrhizodontidae are clupeomorphs or euteleosteans, the Cretaceous Bananogmiidae are taeniopaedians, and the Cretaceous and Eocene Diplomystus agree with Recent Clupeidae and Chirocentridae. It is suggested that Phareodus (as Phareodontini) be included in the Osteoglossinae, and that the Ichthyodectiformes, Pachyrhizodontidae, and Bananogmiidae be classed as Teleostei, taxa incertae sedis. Advanced characters of the caudal skeleton of Pachyrhizodus and Bananogmius may prove useful in recognizing related forms"--P. [1].