It is known from a single lower jaw fragment with three teeth, probably the last premolar and first two molars.
It was described in 1928 from a jaw fragment by Case, who interpreted the new taxon as a fish.
Before that, it was known by jaw fragments, isolated teeth, a few postcranial bones.
An upper jaw fragment, a left maxilla with three teeth, has been referred to the species.
Obamadon is known from two lower jaw fragments, each less than a centimeter in length.
Other fish fossils include teeth, jaw fragments and scales.
I checked the jaw fragments, hit one with a few more drops, then rested the pipette on the solution jar cover.
It was named by Swinton in 1930 for a lower jaw fragment from Nigeria.
This large jaw fragment was first found in 1941 by von Koenigswald.
This was another jaw fragment described by Marks in 1953.