Distinctive "Congrid type" fish otoliths from the Lower Tertiary of the Gulf Coast (Pisces: Anguilliformes)
Frizzell, D.L.; Lambert, C. (1962). Distinctive "Congrid type" fish otoliths from the Lower Tertiary of the Gulf Coast (Pisces: Anguilliformes). Proc. Calif. Acad. Sci. XXXII(5): 87-101