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Graphoceras (Platygraphoceras) apertum (Buckman 1888)
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By Ludwigia
Taxonomy
Ammonite
Kingdom: Animalia
Phylum: Mollusca
Class: Cephalopoda
Order: Ammonitida
Family: Graphoceratidae
Genus: Grahoceras (Platygraphoceras)
Species: Graphoceras (Platygraphoceras) apertum
Author Citation Buckman 1888
Geological Time Scale
Eon: Phanerozoic
Era: Mesozoic
Period: Jurassic
Sub Period: None
Epoch: Middle
International Age: Late Aalenian
Stratigraphy
Achdorf Formation
Geisingen Oolith Bed
Biostratigraphy
Concavum Zone
Provenance
Collector: Roger Furze
Date Collected: 09/09/2006
Acquired by: Field Collection
Dimensions
Diameter: 17 cm
Location
Clay pit
Geisingen a. d. Donau
Baden Wuerttemberg
Germany
Comments
Calcite mold. This is only the phragmocone, so it would have been quite a large creature.
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