The Phareodus played an important role in the ecosystem of the ancient lake. We feel that this genus was an omnivorous feeder that kept the bottom near the shore free of half dead organisms as well as occasionally feeding on live fish. It is a widely distributed genus, but not an abundant one. It belongs to a family that is today restricted to tropical and semi-tropical regions. Remains of this ancient fish can not only be found within the lake deposits, but in nearby channel and stream deposits as well. The fish is covered with large, thick oval shaped scales that are often found separate within the shales. A unique characteristic of the Phareodus is the pectoral appendages which are modified fins that are usually equal in size to one third of the fishes total length. It appears that the fish used these appendages while in shallow water environments for rummaging purposes.

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