Parapuzosia bradyi

Parapuzosia bradyi Temporal range: Late Cretaceous PreЄ Є O S D C P T J K Pg N
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Cephalopoda
Subclass:	†Ammonoidea
Family:	†Desmoceratidae
Genus:	†Parapuzosia
Species:	† P. bradyi
Binomial name
*Parapuzosia bradyi* Miller & Youngquist, 1946

Parapuzosia bradyi is a gigantic species of ammonite, reaching diameters of more than 4.5 ft (1.4 m) by 6 ft (1.8 m). It is the largest species of ammonite in North America. It had a moderately involute shell with flat sides. The inner whorls are slightly oval-shaped with prominent ribbing. They are only known from the upper layers of the Eagle Sandstone and Cody Shale formations (both Late Cretaceous).^[1]

References

↑ Neal L. Larson, Steven D. Jorgensen, Robert A. Farrar, & Peter L. Larson (1997). Ammonites and the Other Cephalopods of the Pierre Seaway. Geoscience Press, Inc. p. 44. ISBN 0-945005-34-2.

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