Rare Complete Heteromorph Ammonite Fossil Cretaceous Nautilus For Sale

Acanthoceras Heteromorph Spiral Ammonite Fossil — Rare Ram-Horn Style Display SpecimenRare and striking Acanthoceras heteromorph spiral ammonite fossil display specimen with a dramatic coiled “ram-horn” form, pronounced ribbing, and strong sculptural presence. The fossil is naturally presented on a pale stone matrix base, making it an excellent collector specimen, natural-history display piece, or cabinet-of-curiosities centerpiece.

The specimen features dark brown to charcoal tones with visible ridging, natural surface texture, mineral variation, and excellent visual contrast against the lighter matrix. Its unusual spiraled form gives it a distinctive architectural look and makes it stand out from more common flat ammonite heteromorph spiral ammonite fossil as Acanthoceras

Dramatic ram-horn style coiled form

Pronounced ribbing and natural fossil on natural stone matrix

Strong display piece for fossil collectors, office décor, shelf display, or natural-history collection

Approximate measurements:
4.5" long x 4.5" wide

Condition:
Pre-owned collector/display specimen in very good condition with no known defects. Natural mineral variation, matrix texture, surface irregularities, small chips, and natural lines may be present as part of the fossil and surrounding stone matrix. Please review all photos carefully, as they are part of the description. Sold as shown.

Note:
Age, species, and geological identification are based on the information available to me at the time of listing. Buyer should review photos and details carefully.

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