Front view (largest specimen): Pleydellia spathi
Front view (smallest specimen): Pleydellia sp.
Rear view: Pleydellia buckmani
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Taxonomy
Genus: Pleydellia
Subfamily: Dumortieriinae
Family: Graphoceratidae
Superfamily: Hammatoceratoidea
Suborder: Ammonitina
Order: Ammonitida
Stratigraphy
Period: Jurassic
Stage: Toarcian
Substage: Upper Toarcian
Zone: aalensis
Subzone: pseudolotharingicum
Locality
Country of origin: France
Department/District of origin: 67 (Bas-Rhin)
Locality of origin: Gundershoffen
Miscellaneous
Collection number: 205
Scanner: OpenScan Mini