Gravesia (ammonite)

Gravesia
Temporal range: Kimmeridgian–Tithonian
Specimen of Gravesia gigas
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Cephalopoda
Subclass: †Ammonoidea
Order: †Ammonitida
Superfamily: †Perisphinctoidea
Genus: †Gravesia

Gravesia is an extinct genus of ammonite known from the Upper Jurassic (Kimmeridgian-Tithonian stages) of Europe.[1][2]

References

  1. ^ 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.
  2. ^ 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.{{cite book}}: CS1 maint: multiple names: authors list (link)