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Crussoliceras crusoliense
Images: 
By Ludwigia
Taxonomy
Ammonite
Kingdom: Animalia
Phylum: Mollusca
Class: Cephalopoda
Order: Ammonitida
Family: Ataxioceratidae
Genus: Crussoliceras
Species: Crussoliceras crusoliense
Author Citation Fontannes 1876
Geological Time Scale
Eon: Phanerozoic
Era: Mesozoic
Period: Jurassic
Sub Period: None
Epoch: Late
International Age: Early Kimmeridgian
Stratigraphy
Lacunosa-Mergel Formation
Biostratigraphy
divisum zone
Provenance
Collector: Roger Furze
Date Collected: 05/11/2015
Acquired by: Field Collection
Dimensions
Diameter: 15 cm
Location
Beuron
Upper Danube Valley
Baden-Wuerttemberg
Germany
Comments
Calcite mold. Complete specimen. Only the apophyse is missing on this microconch. C. divisum is generally larger than C. crusoliense, which reaches an adult diameter of at the most 15 cm. The bipartite ribs crossing the venter continue mostly on until the end of the bodychamber and can become irregular, whereas by C. crusoliense they tend to merge towards the end and remain relatively constant.
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