Acanthoceratinae
| Acanthoceratinae Temporal range: Cretaceous, 125.45–89.3 Ma | |
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| Fossil shell of Acanthoceras rhotomagensis from France, on display at Galerie de paléontologie et d'anatomie comparée in Paris | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Cephalopoda |
| Subclass: | †Ammonoidea |
| Order: | †Ammonitida |
| Family: | †Acanthoceratidae |
| Subfamily: | †Acanthoceratinae Grossouvre, 1894 |
The Acanthoceratinae comprise a subfamily of ammonoid cephalopods that lived during the Late Cretaceous from the latter early Cenomanian to the late Turonian
Shells are evolute, tuberculate and ribbed, with subquadrate to squarish whorl section wherein tubercles typically dominate over ribs. Derivation is from the Mantellicertinae in the early Cenomanian. Gave rise through Neocardioceras to the Mammitinae.
Genera
The following genera are included in the Acanthoceratinae according to various sources as indicated.
- Acanthoceras Neumayer 1875 [1][2]
- Acompsoceras Hyatt 1903 [2]
- Calycoceras Hyatt 1900 [2] [3]
- Conlinoceras Cobban & Scott, 1972 [2]
- Cunningtoniceras Collignon 1937 [2][3]
- Dunverganoceras Warren & Stelck 1940 [1]
- Eucalycoceras Spath 1923 [3]
- Hypacanthohoplites Spath 1923 [3]
- Kanabiceras Reeside & Weymouth 1931 [1]
- Nebraskites Kennedy & Cobban 1988 [3]
- Neocardioceras Spath 1926 [1]
- Neosaynoceras Brestrpher 1947 [1]
- Nigericeras Schneegan 1943 [2]
- Protacanthoceras Spath 1923 [1]
- Pseudocalycoceras Thomel 1969 [2]
- Quitmaniceras Powell 1963 [3]
- Romaniceras Spath 1923 [1]
- Watinoceras Warren 1930 [2]
Distribution
Fossils of species within the Acanthoceratinae have been found in Upper Cretaceous sediments in Angola, Antarctica, Australia, Brazil, Canada, Denmark, Egypt, France, Germany, Japan, Jordan, Madagascar, Mexico, Nigeria, Oman, Peru, Russia, Switzerland, United Kingdom, United States and Venezuela.[1]
References
- W.J. Arkell, et al., 1957. Mesozoic Ammonoidea; Treatise on Invertebrate Paleontology, Part L. Geological Society of America and University of Kansas Press.