Subfamily Puzosiinae Rank Genus | ||
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Similar Pseudothurmannia, Phyllopachyceras, Pleuroceras solare, Progeronia, Pachydiscus | ||
Puzosia is a genus of desmoceratid ammonites, and the type genus for the Puzosiinae, which lived during the middle part of the Cretaceous, from early Aptian to Maastrichtian (125.5 to 70.6 Ma). Sepkoski defines the range from Albian to Santonian. The generic name comes from the Serbian words "Puž" (snail) and "oce/ose" (axis), gaining its name from the shell's snail-like appearance.
Contents
Subgenera and species
Description
The shell of Puzosia is basically discoidal, evolute to subinvolute, with a wide umbiicaus. Sides bear close spaced sinuous ribs, periodically interrupted by narrow sinuous constrictions, about six per whorl. Whorl section is somewhat compressed, higher than wide, with slightly convex sides and rounded venter. The suture is complexly ammonitic.
Distribution
Fossils of species within this genus have been found in the Cretaceous sediments of Angola, Argentina, Australia, Brazil, Canada, Colombia (Tolima), Egypt, France, Germany, India, Iran, Italy, Japan, Madagascar, Mexico, New Zealand, Nigeria, Peru, Russia, South Africa, Spain, Suriname, the United Kingdom, United States.