There seems to be something about working with fossils which loosens the imagination, and one of the ways in which the emancipated imagination goes to work is in trying to determine the functions of problematic structures. In general we believe we are justified in assuming that the structures we identify as orbits in the skulls of fossil fishes housed eyes. Most of us would also agree to accept and use identification of structures closely resembling what we find in modern forms, such as otic capsules, nasal organs, lateral line systems, portions of the brain-case, etc. Other structural features are not so readily homologized with those of modern forms. Hypotheses regarding the functions of these structures we regard with skepticism.
Proceedings of the Iowa Academy of Science
©1954 Iowa Academy of Science, Inc.
Robertson, George M.
"The Nature of the So-Called Electric Organs in Ostracoderms,"
Proceedings of the Iowa Academy of Science, 61(1), 598-603.
Available at: https://scholarworks.uni.edu/pias/vol61/iss1/79