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Echioceras is an extinct genus of ammonites from the Early Jurassic of Europe and North America.
Description
Shell of Echioceras species can reach a diameter of about 4–6 centimetres (1.6–2.4 in).. The narrow and broad evolute shell is reinforced by fine ribs on inner whorls, progressively becoming stronger, straight and distinct.
Distribution
Fossils of species within this genus have been found in the Jurassic rocks of Canada, Hong Kong, Turkey and United Kingdom,[2] Carpathians[3] and Alps.
References
- Notes
- ^ Sepkoski, Jack (2002). "A compendium of fossil marine animal genera (Cephalopoda entry)". Bulletins of American Paleontology. 363: 1–560. Archived from the original on 2016-02-25. Retrieved 2017-10-18.
- ^ a b Echioceras in Paleobiology Database
- ^ Rakús, M., 1962: Amonity v liase Západných Karpát (Ammonites in Liassic of Western Carpathians). Geologické práce, Zošit 62, pp. 267 - 271
- Bibliography
- Cyril Walker & David Ward (1993) - Fossielen: Sesam Natuur Handboeken, Bosch & Keuning, Baarn. ISBN 90-246-4924-2
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