Parapuzosia

Parapuzosia is an extinct genus of desmoceratid ammonites from the Cenomanian to the Campanian of Africa, Europe, and North America.[2] They are typically very large ammonites, reaching diameters of 60 cm (2.0 ft) or more, with the largest species measuring upwards of more than 2.5 m (8.2 ft).[3] It possesses a moderately involute shell with flat or slightly rounded sides. Distinct primary and secondary ribbing can be observed in the inner whorls.[4]

Parapuzosia
Temporal range: Cenomanian-Campanian
~
Parapuzosia seppenradensis with a diameter of 1.8 m (5.9 ft)
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Cephalopoda
Subclass: †Ammonoidea
Order: †Ammonitida
Family: †Desmoceratidae
Subfamily: †Puzosiinae
Genus: †Parapuzosia
Nowak, 1913
Type species
Parapuzosia daubreei
Species[2]
  • P. americana (Scott & Moore, 1928)
  • P. boesei (Scott & Moore, 1928)
  • P. bradyi (Miller & Youngquist, 1946)
  • P. corbarica (Grossouvre, 1894)
  • P. daubreei (Grossouvre, 1894) (type species)
  • P. seppenradensis (Landois, 1895)

Etymology

The origin of the generic name Parapuzosia ("similar to Puzosia") comes from the smaller, related desmatoceratid Puzosia. "Puzosia" comes from the Serbian words "пужа/Puzo" (Snail) and "Oca/Osia" (Axis), translating to "snail axis".

References
  1. Sepkoski, Jack (2002). "Sepkoski's Online Genus Database". Retrieved 2014-05-28.
  2. "Paleobiology Database - Parapuzosia". Retrieved 17 December 2021.
  3. "Shelled krakens of the Mesozoic deep".
  4. 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.
Parapuzosia sp., Upper Cretaceous, Shumen with a diameter of 1.44 m at the National Museum of Natural History, Bulgaria


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