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(DSM# 10676) Extinct genus - Mortoniceras is commonly known from sediments of the Western Interior Seaway. The seaway was a wide swath of sea that roughly cut North America in half north to south during the Cretaceous and early Paleocene periods.

(DSM# FK101) Extinct genus of ammonite.

(DSM# 10672) Extinct genus - Mortoniceras is recognized by its highly ornamented shell. Its closest relatives had more smooth shells.

(unnumbered) Extinct genus - Many ammonite specimens found in the Tombigbee sand do not show well preserved suture marks. This makes it more difficult to identify the fossil to species level.

(DSM# 10716) Extinct family of predatory marine reptiles. This species of mosasaur could grow up to 60 feet in length.

(DSM# 10743) The quadrate is the place where the jaw articulates with the skull of the creature.