Description
Rare Large Sporadoceras muesteri Goniatite Fossil – Upper Devonian – Morocco
This striking and rare fossil is a beautifully preserved specimen of the extinct ammonoid genus Sporadoceras, specifically the species Sporadoceras muesteri. It hails from the Upper Devonian period and was discovered in Morocco, a region well-known for its rich and diverse fossil beds.
Geological Details:
- Species: Sporadoceras muesteri
- Type: Goniatite (extinct ammonoid cephalopod)
- Geological Period: Upper Devonian (~382 – 359 million years ago)
- Formation: Likely derived from the Anti-Atlas region’s marine Devonian limestone deposits
- Location Found: Morocco
- Zone/Biozone: Specific zone data not clearly defined for this specimen
- Stage: Possibly Frasnian or Famennian Stage
- Family: Tornoceratidae
- Superfamily: Tornoceratoidea
- Order: Goniatitida
Morphological Features:
- Involute shell structure with gently curved, lobed sutures characteristic of goniatites
- Fine ribbing and smooth whorls
- Prominent suture lines visible, showcasing evolutionary development from nautiloids to more derived ammonoids
- The size and quality make this a particularly desirable collector’s item
Depositional Environment: The fossil was formed in a shallow marine shelf setting, rich in carbonate sediments typical of Devonian warm tropical seas that covered much of what is now North Africa. The conditions promoted exceptional preservation.
Notable Information:
- Goniatites are ancestors of modern cephalopods such as squid and octopus
- The genus Sporadoceras is significant in biostratigraphy for helping to date Devonian marine strata
Specimen Specifics:
- You will receive the exact specimen shown in the photo
- Scale Rule Squares / Cube = 1cm for size reference
- Please refer to photos for full sizing and detail
Certificate of Authenticity: All of our fossils are 100% genuine and carefully selected. A Certificate of Authenticity is included with every purchase for your confidence and records.
Add this exceptional and scientifically significant piece to your fossil collection today. A unique window into the ancient marine ecosystems of the Devonian seas!






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