Stephanoceras humphriesianum

Stephanoceras humphriesianum is an extinct species of Stephanoceratoid ammonites.[2]

Illustration of Stephanoceras humphriesianum from Kunstformen der Natur (1904)

Stephanoceras humphriesianum
Temporal range: Middle Jurassic [1]
Stephanoceras humphriesianum from Germany, on display at the Museo Civico di Storia Naturale di Milano
Scientific classification
Kingdom:
Animalia
Phylum:
Mollusca
Class:
Cephalopoda
Subclass:
Ammonoidea
Order:
Ammonitida
Suborder:
Ammonitina
Superfamily:
Stephanoceratoidea
Family:
Stephanoceratidae
Genus:
Stephanoceras
Species:
S. humphriesianum
Binomial name
Stephanoceras humphriesianum
Sowery 1825

Description

Stephanoceras humphriesianum has an evolute shell with well-developed ribbing and tubercles.

Distribution

Fossils of Stephanoceras humphriesianum are found in the Middle Jurassic marine strata of British Columbia, England and Germany.[1][3] The zone of Stephanoceras humphriesianum is an ammonite biozone of the Bajocian age, in the Tethys domain.

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References
  1. BRLSI
  2. Global Names Index
  3. Cornelius Breckinridge Boyle A Catalogue and Bibliography of North American Mesozoic Invertebrata, Vol. 8, Ed. 102


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