UK Ammonite Placenticeras IF-UKA-16-013 Carnivorous Dinosaur reaching 30-50 m (98-164 ft)

reaching 30-50 m (98-164 ft) in height

There is also a Mimosites coloradensis leaflet

the best known of which is A

and includes an uncertain number of valid species

There are two rows of well-defined tubercles on the flanks

UK Ammonite Placenticeras IF-UKA-16-013 Carnivorous Dinosaur reaching 30-50 m (98-164 ft)Placenticeras intercalare Pierre Formation Upper Cretaceous (Campanian) Meade County, South Dakota This example of P. intercalare has well defined features characteristic of the species. The specimen has a nearly complete body chamber and some sutures are visible. The ammonite shows sign of injury pathology and makes this specimen of particular interest. The ammonite is 4. 5 inches across. Placenticeras intercalare is smaller than P. meeki and has a