Edited by oilshale
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Grammoceras thouarsense (d'Orbigny 1843)
Images: 
By Ludwigia (edited)
Taxonomy
Ammonite
Kingdom: Animalia
Phylum: Mollusca
Class: Cephalopoda
Order: Ammonitida
Family: Hildoceratidae
Genus: Grammoceras
Species: Grammoceras thouarsense
Author Citation d'Orbigny 1843
Geological Time Scale
Eon: Phanerozoic
Era: Mesozoic
Period: Jurassic
Sub Period: None
Epoch: Early
International Age: Late Toarcian
Biostratigraphy
Thouarsense zone
Provenance
Collector: Roger Furze
Date Collected: 08/12/2008
Acquired by: Field Collection
Dimensions
Diameter: 6 cm
Location
Évrécy
Calvados
Normandy
France
Comments
A nest of 5 specimens, the largest of which has a diameter of 6cm. The whole thing measures 10x8x4cm. Index fossil for its zone.
Literature: Howarth, M.K. (1992): The Ammonite Family Hildoceratidae in the Lower Jurassic of Britain. Monograph of the Palaeontographical Society.
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