Gravesia (ammonite)
Gravesia is an extinct genus of ammonite known from the Upper Jurassic (Kimmeridgian-Tithonian stages) of Europe.[1][2]
| Gravesia Temporal range: | |
|---|---|
 | |
| Specimen of Gravesia gigas | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Cephalopoda |
| Subclass: | †Ammonoidea |
| Order: | †Ammonitida |
| Superfamily: | †Perisphinctoidea |
| Genus: | †Gravesia |
References
- Scherzinger, Armin; Schweigert, Günter (May 2016). "The ammonite genera Gravesia Salfeld and Pseudogravesia Hantzpergue in the Tithonian of S Germany and their correlation value with Western Europe". Proceedings of the Geologists' Association. 127 (2): 288–296. doi:10.1016/j.pgeola.2015.12.010.
- S.M., Gallois, R.W. Etches (2010). The distribution of the ammonite Gravesia (Salfeld, 1913) in the Kimmeridge Clay Formation (Late Jurassic) in Britain. Ussher Society. OCLC 769109876.
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