Pseudothurmannia
Pseudothurmannia | |
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Fossil shells of Pseudothurmannia species from Alpes-de-Haute-Provence, on display at Galerie de paléontologie et d'anatomie comparée in Paris | |
Scientific classification | |
Kingdom: | Animalia |
Phylum: | Mollusca |
Class: | Cephalopoda |
Subclass: | Ammonoidea |
Order: | Ammonitida |
Superfamily: | Ancyloceratoidea |
Family: | Crioceratitidae |
Genus: | Pseudothurmannia Spath, 1923 |
Synonyms | |
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Pseudothurmannia is a genus of extinct cephalopods belonging to the subclass Ammonoidea and included in the family Crioceratitidae of the ammonitid superfamily Ancylocerataceae. These fast-moving nektonic carnivores [1] lived in the Cretaceous period, from Hauterivian age to Barremian age.[2]
Species
- Pseudothurmannia angulicostata d'Orbigny, 1863
- Pseudothurmannia belimelensis Dimtrova, 1967
- ?Pseudothurmannia biassalensis Dimtrova, 1967
- Pseudothurmannia catulloi Parona, 1898
- ?Pseudothurmannia crimensis Wiedmann, 1962
- Pseudothurmannia grandis Busnardo, 1970
- Pseudothurmannia isocostata Kakabadze, 1981
- Pseudothurmannia karakaschi Manolov, 1962
- Pseudothurmannia lurensis Busnardo, 1970
- Pseudothurmannia macilenta d'Orbigny, 1841
- Pseudothurmannia mortilleti Pictet and de Loriol, 1858
- Pseudothurmannia ohmi Winkler, 1868
- Pseudothurmannia picteti Sarkar, 1955
- Pseudothurmannia provencalis Wiedmann, 1962
- Pseudothurmannia pseudomalbosi Sarasin and Schandelmayer, 1901
- Pseudothurmannia renevieri Sarasin and Schöndelmayer, 1901
- Pseudothurmannia rugosa Busnardo, 2003
- Pseudothurmannia sarasini Sarkar, 1955
Description
Shell of Pseudothurmannia species can reach a diameter of about 4–12 centimetres (1.6–4.7 in). They show flat or slightly convex sides, a surface with dense ribs and a subquadrate whorl section.
Distribution
Fossils of species within this genus have been found in the Cretaceous rocks of Antarctica, Czechoslovakia, France, Hungary, Italy, Japan, Morocco, Spain, Russia and United States.[1]
References
- 1 2 3 The Paleobiology Database
- ↑ Sepkoski, Jack Sepkoski's Online Genus Database – Cephalopoda
- ↑ Klein, J. et al., 2007. FOSSILIUM CATALOGUS I:ANIMALIA Pars 144, Lower Cretaceous Ammonites III Bochianitoidea, Protancyloceratoidea, Ancyloceratoidea, Ptychoceratoidea.
- Hoedemaeker, Philip. J. SEXUAL DIMORPHISM IN THE GENUS PSEUDOTHURMANNIA
- Crioceratites
External links
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