Scientific name Hildoceras Rank Genus | Subfamily †Hildoceratinae Higher classification Hildoceratinae | |
Similar Ammonites, Hildoceras bifrons, Harpoceras, Dactylioceras, Lytoceras | ||
Hildoceras is a genus of ammonite from the Jurassicera in the family Hildoceratidae. The shells are characterized by a narrow discoidal evolute shape, keeled venter, concave ribs along the outer flanks, and a shallow spiral goove running along smooth inner flanks. Whorls slightly overlap, cross sections are compressed. The ventral keel is bordered on either side by a shallow groove.
The genus was named by Alpheus Hyatt after Saint Hilda in 1876, and fossils have been found in Europe and Japan.
Distribution
Jurassic of Bulgaria, France, Germany, Hungary, Italy, Japan, Luxembourg, Serbia and Montenegro, Spain, the United Kingdom and Iran.
References
Hildoceras Wikipedia(Text) CC BY-SA