Edited by oilshale
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Garnierisphinctes garnieri (Fontannes 1876)
Images: 
By Ludwigia (edited)
Taxonomy
Ammonite
Kingdom: Animalia
Phylum: Mollusca
Class: Cephalopoda
Order: Ammonitida
Family: Ataxioceratidae
Genus: Garnierisphinctes
Species: Garnierisphinctes garnieri
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: 02/09/2015
Acquired by: Field Collection
Dimensions
Diameter: 15 cm
Location
Beuron
Upper Danube Valley
Baden-Wuerttemberg
Germany
Comments
Limestone mold. Garnierisphinctes can be distinguished from Crussoliceras by its finer ribbing which continues farther along the whorls as by the latter. The rib-splitting over the venter is also more variable, particularly on the body chamber. This specimen is far from complete, but at least the first part of the body chamber is preserved.
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