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Pachydesmoceras 
Summary
Pachydesmoceras is a genus of ammonites belonging to the family Desmoceratidae.
| Pachydesmoceras Temporal range: Cretaceous
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| Pachydesmoceras sp., upper Cretaceous (Turonian), from Madagascar | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Cephalopoda |
| Subclass: | †Ammonoidea |
| Order: | †Ammonitida |
| Family: | †Desmoceratidae |
| Subfamily: | †Puzosiinae |
| Genus: | †Pachydesmoceras Spath, 1922 |
Species of this genus were fast-moving nektonic carnivorous shelled cephalopods. They lived during the Cretaceous, from the Albian (112.0-99.6 Mya) to the Santonian (85.8-83.5 Mya) stage.
Distribution edit
Cretaceous of Antarctica, Cameroon, India, Japan, Nigeria, Romania, United States (California).
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Fossil of Pachydesmoceras pachydiscoide from Japan. Exhibit in the National Museum of Nature and Science, Tokyo, Japan.
See also edit
References edit
- Sepkoski, Jack Sepkoski's Online Genus Database – Cephalopodes Archived 2016-02-25 at the Wayback Machine
- Paleobiology Database
- Adrian Kin First record of the puzosiine ammonite genus Pachydesmoceras from the Middle and Upper Turonian of Poland
- Tatsuro Matsumoto Note on Pachydesmoceras, a Cretaceous ammonite genus[permanent dead link]