Psiloceratidae
Appearance
Psiloceratidae | |
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Fossil shells of Psiloceras planorbis from Germany, 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 |
Superfamily: | †Psiloceratoidea |
Family: | †Psiloceratidae Hyatt, 1867 |
Synonyms | |
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Psiloceratidae is an extinct family of cephalopods belonging to the ammonite subclass.
Description
The Psiloceratidae are evolute, smooth or with blunt primary ribbing. The venter is rounded and generally smooth, in some feebly keeled. Sutures are simple with phylloid saddle endings in some. The aptychus is single, found in sutu in Psiloceras
Genera
- Discamphiceras
- Kammerkaroceras
- Paradiscamphiceras Taylor, 1988
- Euphyllites Wahner, 1898
- Badouxia Guex and Taylor, 1976
- Caloceras
- Franziceras Buckman, 1923
- Laqueoceras
- Murihikuites Stevens, 2004
- Paraphylloceras Salfeld, 1919
- Psiloceras
- Psilophyllites
Distribution
Fossils of species within this genus have been found in the Triassic rocks of Canada, in the Jurassic rocks of Argentina, Austria, Canada, China, France, Germany, Hungary, Mexico, New Zealand, Spain), United Kingdom, United States, as well as in the Cretaceous of Australia and Russia.[1]
References
- Arkell, W.J.; Kummel, B.; Wright, C.W. (1957). Mesozoic Ammonoidea. Treatise on Invertebrate Paleontology, Part L, Mollusca 4. Lawrence, Kansas: Geological Society of America and University of Kansas Press.
Categories:
- Ammonitida families
- Psiloceratidae
- Psiloceratoidea
- Rhaetian first appearances
- Rhaetian taxonomic families
- Hettangian taxonomic families
- Sinemurian taxonomic families
- Pliensbachian taxonomic families
- Toarcian taxonomic families
- Aalenian taxonomic families
- Bajocian taxonomic families
- Bathonian taxonomic families
- Callovian taxonomic families
- Oxfordian taxonomic families
- Kimmeridgian taxonomic families
- Tithonian taxonomic families
- Berriasian taxonomic families
- Valanginian taxonomic families
- Hauterivian taxonomic families
- Barremian taxonomic families
- Aptian taxonomic families
- Albian taxonomic families
- Cenomanian taxonomic families
- Turonian taxonomic families
- Coniacian taxonomic families
- Santonian taxonomic families
- Campanian taxonomic families
- Maastrichtian taxonomic families
- Maastrichtian extinctions
- Ammonitina stubs