Zoom Ancyloceras Heteromorph On Bronze 610mm
Zoom Ancyloceras Heteromorph On Bronze 610mm
Zoom Ancyloceras Heteromorph On Bronze 610mm
Zoom Ancyloceras Heteromorph On Bronze 610mm
Zoom Ancyloceras Heteromorph On Bronze 610mm
Zoom Ancyloceras Heteromorph On Bronze 610mm
Zoom Ancyloceras Heteromorph On Bronze 610mm
Zoom Ancyloceras Heteromorph On Bronze 610mm
Zoom Ancyloceras Heteromorph On Bronze 610mm
Zoom Ancyloceras Heteromorph On Bronze 610mm

Ancyloceras Heteromorph On Bronze 2ft

£1,862.00 GBP

An unusually weird-looking heteromorph fossilised shell of this type of ancient mollusc is not so instantly recognisable as part of the suborders of ammonoidea, ammonites. The eccentrically winding growth of the shell appears quite exotic. Up until quite recently, it was thought that the evolving form was a period of decline during the Jurassic when this type of dimorphism first appeared in the fossil record of ammonoidea. For the ammonites, the evolution of the heteromorph uncoiling whorls persisted up to their eventual extinction in the later Cretaceous period.


Now it established that in fact, this was radiation of types of heteromorphs which were developing and evolving a greater diversity rather than a declining last act of the ammonite group. This just so happened to be leading up to and at around the time of the great mass extinction at the KT boundary. The eccentric fossilised shell termed an internal mould is from around 100 million years ago. Excavated from the High Atlas mountains of Morocco, the western province of Agadir-Ida Ou Tanane Prefecture and of the Souss-Massa, Marrakech-Safi region. The Fossil Store has surmounted the specimen fossil onto the superb bronzed mount, this balances the fossils securely, which can be lifted off the stand for transport and further study.


Early forms of Jurassic heteromorph ammonites had morphology which was not as exaggerated as this specimen, in their early development the last outer whorl of the shell became separate from the main inner spirals, this developed becoming more pronounced as in this example, eventually towards the end of the Cretaceous types were developing complex and convoluted intertwined types. A most fascinating glimpse back in time to a period of great expansion which finally and abruptly ceased.


Superb large heteromorph ammonite in the fine bronze mount, the clasps do not harm the specimen, which supports the ammonite on a bronze plinth. The bronze mounts very attractive to gallery or museum exhibition standard. Read the ammonite description below...


Geological age: Lower Aptian - Upper Albian 113 to 108 million years.
Genus Att: Audoulioceras, Ancyloceras cf. matheronianum (D’Orbigny 1842)
Location: Pays de Haha, Essaouira south to the Souss Valley, Western Morocco High Atlas Range.


Heteromorph measurements in bronze mount.
Height: 61.0 cm
Width: 26.0 cm
Depth: 11.0 cm


Heteromorph sp. measurements.
Height: 49.5 cm
Width: 26.0 cm
Depth: 9.0 cm


Approximate weight: 15 Kg

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Please note - small products usually arrive within 2 - 4 business days.
Large products usually arrive within 4 - 10 business days, this may vary if your item/s require special packaging requirements based on size and to improve the safety of your item/s. 

✓ Free UK Delivery

✓ Free standard UK delivery - Recorded/Signed-for

All UK orders include free delivery, excluding Ireland, Scotland and the Highlands.

✓ Worldwide Delivery

✓ Worldwide delivery - Tracked/Signed-for

All orders outside the United Kingdom are tracked for you to follow. Please contact us and include your delivery address, including the item/s of interest for delivery estimates.

✓ Authenticity Guaranteed

✓ Certificate of authenticity included


You will receive a certified certificate signed on behalf of The Fossil Store. We only provide authentic, high quality assured fossil and mineral specimens.

✓ Specify Delivery Date

✓ Delivery date picker - Let us know your preferred delivery date.

Once we know your preferred delivery date, we'll reply with confirmation and do our best to accommodate you where possible. Certain products may require more leading time for custom packaging and boxing whether your items requires a custom box build or palletising for a secure delivery.

You can select a day and one-hour time slot with us and we'll assign your order delivery with DPD Precise or another courier after placing your order.

For next-day delivery, please contact us, leading times vary and depend on couriers at the time of your enquiry.

You can return your order for any reason, free of charge, within 14 days of receiving your product.


Some Exclusions Apply. Learn more about Thefossilstore.com delivery options and returns policy.

Please note - small products usually arrive within 2 - 4 business days.
Large products usually arrive within 4 - 10 business days, this may vary if your item/s require special packaging requirements based on size and to improve the safety of your item/s. 

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