Vermiceras
Genus of molluscs (fossil)
Vermiceras Temporal range: Hettangian–Sinemurian[1] PreꞒ Ꞓ O S D C P T J K Pg N | |
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Vermiceras scylla fossil | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Mollusca |
Class: | Cephalopoda |
Subclass: | †Ammonoidea |
Order: | †Ammonitida |
Family: | †Arietitidae |
Subfamily: | †Arietitinae |
Genus: | †Vermiceras Hyatt, 1889 |
Species | |
See text | |
Synonyms | |
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Vermiceras is an ammonite that belongs to the order Ammonitida.[2] Its shell is evolute and is covered in nonbranching ribs. Its whorls do not increase in size very fast, but there are many revolutions on its shell, which is fairly narrow. It has a sharp ventral keel and a diameter of about 5.2 centimeters (2 inches). It lived in the Early Jurassic.
Subgenera and species
- V. (=Metophioceras) galaczi
- V. (=Metophioceras) rotarium
- V. (=Metophioceras) rotticus
- V. (=Metophioceras) trigonatum
- V. (=Protocymbites) azzouzi
- V. densicostatum
- V. (Gyrophioceras)
- V. (G.) mineralense
- V. (G.) morganense
- V. (G.) praespiratissimum
- V. (G.) supraspiratum
- V. (Paracaloceras)
- V. (P.) concavum
- V. (P.) coregonense
- V. (P.) multicostatum
- V. (P.) rursicostatum
- V. (P.) varaense
References
- Notes
- Bibliography
- Moore, Raymond Cecil., Alfred George. Fischer, and Cecil Gordon. Lalicker. Invertebrate Fossils. New York: McGraw-Hill, 1952. Print. ISBN 9780070430204
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