Pseudocrioceras duvalianum

Pseudocrioceras duvalianum; Temporal range: Barremian
	Fossil of Pseudocrioceras duvalianum from Alpes-de-Haute-Provence, on display at Galerie de paléontologie et d'anatomie comparée in Paris
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Cephalopoda
Subclass:	Ammonoidea
Suborder:	Ancyloceratina
Family:	Ancyloceratidae
Genus:	Pseudocrioceras
Species:	P. duvalianum
Binomial name
	Pseudocrioceras duvalianum; d’Orbigny, 1842
Synonyms
	Ancyloceras duvalianus (d’Orb.); Crioceras cruasense Kilian;

Pseudocrioceras duvalianum is an extinct species of ammonite cephalopod.

Description

Shellls of Pseudocrioceras duvalianum can reach a diamenter of about 17–23 centimetres (6.7–9.1 in). ^[2] These ammonites are tripartite with ancyloceratid-like coiling and quite closed spirals. The section of the horl is subrectangular. They show at first fine radial ribs with ventral tubercles, then groups of 2-3 ribs. ^[1]^[3]

Distribution

These ammonites have has been found in strata of the Barremian age of France. ^[1]

References

^ ^a ^b ^c Pierre Ropolo, Roland Gonnet & Gabriel Conte The ‘Pseudocriocerasinterval’ and adjacent beds at La Bédoule (SE France): implications to highest Barremian/lowest Aptian biostratigraphy
^ AMMONITES DU BARREMIEN
^ Crioceratites

This ammonite-related article is a stub. You can help Wikipedia by expanding it.

[fb-1] Pierre Ropolo, Roland Gonnet & Gabriel Conte The ‘Pseudocriocerasinterval’ and adjacent beds at La Bédoule (SE France): implications to highest Barremian/lowest Aptian biostratigraphy

[2] AMMONITES DU BARREMIEN

[3] Crioceratites

[1]

[2]

[3]