Description
A superb and rare specimen of the heteromorph ammonite species Eopachydiscus laevicaniculatum, dating to the Albian stage of the Cretaceous period, found in Ft. Worth, Texas, USA. This outstanding 7.5″ ammonite is a collector-grade example sourced from the distinguished Alice Purnell Collection.
Eopachydiscus laevicaniculatum belongs to the family Desmoceratidae, within the superfamily Desmoceratoidea. It is noted for its moderately involute coiling, relatively smooth shell with faint or absent ornamentation, and a pronounced ventral groove or canal (caniculated keel), giving the species its name. These morphological traits are distinctive and mark it as an unusual and highly sought-after Cretaceous ammonite.
Geological & Scientific Details:
- Scientific Name: Eopachydiscus laevicaniculatum
- Fossil Type: Ammonite
- Geological Period: Cretaceous
- Geological Stage: Albian
- Location Found: Ft. Worth, Texas, USA
- Order: Ammonitida
- Superfamily: Desmoceratoidea
- Family: Desmoceratidae
- Morphological Features: Large, discoidal shape; moderately involute coiling; smooth flanks; distinctive ventral groove (caniculated keel)
- Depositional Environment: Shallow marine shelf seas typical of the Albian Gulf Coast region
This beautifully preserved fossil captures a key stage in ammonite evolution, just before the Cenomanian radiation. Its North American origin adds to its significance for regional and global biostratigraphic comparison.
All of our Fossils are 100% Genuine Specimens & come with a Certificate of Authenticity.
Please Note:
- Scale Rule Squares / Cube = 1cm – please refer to the photos for full sizing
- You will receive the exact fossil pictured
- Sourced from the expertly curated Alice Purnell Collection
An impressive, scientifically intriguing, and visually striking fossil ammonite – perfect for collectors, educators, or anyone with a passion for natural history.
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