Kosmoceratidae

Kosmoceratidae; Temporal range: Middle Jurassic PreꞒ Ꞓ O S D C P T J K Pg N
	Fossil shell of Kosmoceras spinosum from Calvados (France), on display at Galerie de paléontologie et d'anatomie comparée in Paris
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Cephalopoda
Subclass:	†Ammonoidea
Order:	†Ammonitida
Superfamily:	†Stephanoceratoidea
Family:	†Kosmoceratidae; Haug, 1887
Species
	Gulielmites; Kepplerites; Kosmoceras; Sigaloceras;

Kosmoceratidae is an extinct ammonite family from the Callovian (Middle Jurassic) to Early Cretaceous.

Kosmoceratidae are probably the most polymorphic groups of Jurassic ammonites. These ammonoids have a more or less tabulate venter, with lateral or ventrolateral tubercles. The aptychus is double valved with a concentrically ribbed surface.^[2]

References

^ "Paleobiology Database - Kosmoceratidae". Retrieved 2017-10-19.
^ Treatise on invertebrate paleontology. Part F : America / edited by Raymond C. Moore. -- University of Kansas Press, 1956

Philippe Courville, Catherine Crônier - Diversity or Disparity in the Jurassic (Upper Callovian) genus Kosmoceras (ammonitina): A Morphometric Approach

External links

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[paleodb-1] "Paleobiology Database - Kosmoceratidae". Retrieved 2017-10-19.

[2] Treatise on invertebrate paleontology. Part F : America / edited by Raymond C. Moore. -- University of Kansas Press, 1956

[1]

[2]

Kosmoceratidae Temporal range: Middle Jurassic PreꞒ Ꞓ O S D C P T J K Pg N

Fossil shell of Kosmoceras spinosum from Calvados (France), on display at Galerie de paléontologie et d'anatomie comparée in Paris
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Cephalopoda
Subclass:	†Ammonoidea
Order:	†Ammonitida
Superfamily:	†Stephanoceratoidea
Family:	†Kosmoceratidae Haug, 1887
Species^[1]
Gulielmites Kepplerites Kosmoceras Sigaloceras