Aulacostephanus autissiodorensis, ammonite
Shown here is an Upper Jurassic macroconch (larger form) ammonite. Despite some damage to the shell, the fine ribbing is still apparent
Picture No
10711523
Media ID
47575870
Size
3816px x 4075px
(8.5MB)
Credit
Mary Evans / Natural History Museum
Source
Photograph from the Natural History Museum Collection
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Ammonite Ammonitida Ammonoid Ammonoidea Cephalopod Cephalopoda Coil Fossilised Mollusc Mollusca Mollusk Phanerozoic Ribbed Spiral
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