Asteroceras and promicroceras ammonites

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A rock specimen containing Asteroceras large shell and Promicroceras small shell ammonites from the Lower Lias Marston Magna near Yeovil Somerset

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Size: 4761px × 3694px
Photo credit: © Natural History Museum, London / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ammonite, ammonites, asteroceras, coil, marine, marston, mixture, promicroceras, shell, spiral, variation, yeovil