Browse Items (1893 total)

(DSM# FK101) Extinct genus of ammonite.

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

(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# 3258/FK123) Extinct genus - Baculites are often preserved with some of their original shell. The shell is beautifully irridescent.

(DSM# FK124) Extinct genus - Baculites and other ammonites show intricate patterns on their shells called suture marks. Suture patterns are unique to species and indicate the shape of the chamber in which the animal lived.

(DSM# 10173) Extinct genus - This straight-shelled ammonite is also known as the "walking stick rock". It is thought that they lived in the middle of the water column and did not spend significant time on the ocean floor or the surface.

(DSM# FK313) Extinct genus - This cephalopod genus was able to survive the K-Pg extinction at the end of the Cretaceous only to go extinct during the Miocene period.

Extinct order - Belemnitella's closest living relative is the cuttle fish. The fossil you see here is the internal skeleton of the creature.

(DSM# M266) Extinct order - Belemnites' closest living relative is the cuttle fish. The fossil you see here is the internal skeleton of the creature.