Pseudothurmannia
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| Pseudothurmannia Temporal range: Cretaceous, [1] | |
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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  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Cephalopoda |
| Subclass: | †Ammonoidea |
| Order: | †Ammonitida |
| Suborder: | †Ancyloceratina |
| 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
[edit]- 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
[edit]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
[edit]Fossils of species within this genus have been found in the Cretaceous rocks of Antarctica, Bulgaria, Czechoslovakia, France, Hungary, Italy, Japan, Morocco, Spain, Russia and United States.[1]
References
[edit]- ^ a b c 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.
External links
[edit]- Hoedemaeker, Philip. J. SEXUAL DIMORPHISM IN THE GENUS PSEUDOTHURMANNIA
- Crioceratites
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