RARE Buchiceras bilobatum Ammonite Fossil Coniacian Cretaceous Peru Genuine Specimen COA

Description

Rare Buchiceras bilobatum Ammonite Fossil

Presented here is a rare Buchiceras bilobatum ammonite fossil from the Coniacian stage of the Late Cretaceous, discovered in Peru. Dating back approximately 89–86 million years, this remarkable fossil represents a time when the oceans of South America teemed with diverse marine life. Each specimen is carefully selected for both its scientific value and aesthetic quality, and comes complete with a Certificate of Authenticity. The photographs display the actual fossil you will receive, with a 1 cm scale cube provided for accurate measurement.

Geological Context – Coniacian Stage of the Late Cretaceous

The Coniacian stage formed part of the Late Cretaceous Period, an interval characterised by global high sea levels and widespread shallow marine environments. In South America, marine transgressions created broad seaways that preserved diverse fossil faunas, including ammonites such as Buchiceras bilobatum.

Peruvian Coniacian deposits are typically composed of fine-grained marls and limestones, providing an ideal medium for the preservation of ammonites. These rocks capture the history of a shallow continental shelf environment, where ammonites flourished alongside bivalves, crustaceans, and marine reptiles.

Species Profile – Buchiceras bilobatum

Buchiceras bilobatum is a distinctive ammonite belonging to the order Ammonitida, superfamily Acanthoceratoidea, and family Fagesiidae. It is highly valued in paleontological studies for its detailed morphological traits and restricted stratigraphic range.

Key features include:

• A moderately evolute shell, with whorls that display strong ribbing across the flanks
• Ornamentation often including sharp, angular ribs crossing toward the venter
• A compressed shape with characteristic lobes and saddles visible in the suture lines
• Bilobate features that gave rise to the species epithet bilobatum
• Structural adaptations suggesting both buoyancy control and hydrodynamic efficiency

The distinctiveness of its ribbing and suture patterns makes Buchiceras bilobatum a sought-after fossil for collectors and an important index taxon for geologists.

Scientific Importance and Stratigraphy

This species is an excellent index fossil for the Coniacian stage, with occurrences recorded across South America, Africa, and Europe. Its narrow time range allows researchers to use it in biostratigraphic correlation, linking distant marine strata. The presence of Buchiceras bilobatum in the Peruvian record underscores the global distribution of ammonites and the interconnected nature of Cretaceous seas.

The fossil also illustrates the evolutionary innovation within the Acanthoceratoidea superfamily, with its robust ornamentation serving as both a defensive adaptation and a potential aid in movement through ancient seas.

Collector and Display Appeal

Not only is this ammonite scientifically significant, but it also has strong aesthetic appeal. Its ribbed and sculpted shell surface offers a fascinating glimpse into the artistry of nature preserved in stone. Ammonites from Peru are relatively rare compared to European or Madagascan examples, making this specimen a unique and desirable addition to any collection.

Whether displayed as part of a private collection, used for academic study, or presented in an educational context, this fossil tells a story of life in the ancient oceans of South America.

Authenticity and Guarantee

• Fossil: Buchiceras bilobatum ammonite
• Age: Coniacian stage, Late Cretaceous (approx. 89–86 million years old)
• Locality: Peru
• Supplied with a Certificate of Authenticity
• You will receive the exact specimen shown in the photographs

This rare Buchiceras bilobatum ammonite fossil is an exceptional piece of Earth’s history, offering both scientific relevance and striking natural beauty.