RARE Menuites portlocki Ammonite Fossil Lower Campanian Cretaceous Busko Poland COA

Description

Rare Menuites portlocki Ammonite Fossil

This listing features a rare Menuites portlocki ammonite fossil from the Lower Campanian stage of the Late Cretaceous, discovered in Busko, Poland. Formed around 83 to 80 million years ago, this ammonite is a striking example of the marine life that thrived in Europe’s shallow epicontinental seas during the Cretaceous. The photographs show the actual specimen offered for sale, displayed alongside a 1 cm scale cube for accurate sizing. Every fossil comes with a Certificate of Authenticity, ensuring that you are acquiring a genuine specimen of scientific and historical value.

Geological Context – Lower Campanian, Poland

The Campanian stage is part of the Late Cretaceous, spanning approximately 83.6 to 72.1 million years ago. It was a time of widespread shallow marine environments covering much of Europe, including present-day Poland. The Busko region is particularly rich in fossil deposits due to its sedimentary marine sequences of marls, limestones, and chalks, which created excellent conditions for the preservation of ammonite shells.

These sediments formed in warm, shallow seas connected to the Tethys Ocean, where fluctuating sea levels provided varied habitats for diverse ammonite species. The Lower Campanian rocks in Poland are especially significant for their ammonite faunas, which serve as key tools for biostratigraphic correlation across Europe.

Species Overview – Menuites portlocki

The genus Menuites belongs to the order Ammonitida, superfamily Desmoceratoidea, and family Pachydiscidae. The species Menuites portlocki is renowned among collectors and paleontologists for its rarity and distinctive morphology.

Key characteristics include:

• Large, involute shells with moderately inflated whorls
• Strong, irregular ribbing across the flanks, often fading near the umbilicus
• Pronounced constrictions and tubercles that add ornamentation to the shell
• Sutures that are highly complex and deeply incised, reflecting advanced evolutionary adaptations of Late Cretaceous ammonites

These features make Menuites portlocki instantly recognizable and highly desirable both as a collector’s specimen and for scientific study.

Scientific Importance

As an index fossil, Menuites portlocki is important for dating and correlating Lower Campanian strata. Its relatively narrow stratigraphic range makes it particularly valuable in biostratigraphy, helping geologists and paleontologists to refine the subdivision of Cretaceous deposits. The species also provides insight into the evolutionary pathways of ammonites during the dynamic climatic and sea-level changes of the Campanian stage.

The intricate ornamentation and robust shell morphology of this ammonite may also reflect ecological adaptations, such as resistance to predators and enhanced buoyancy control in fluctuating shallow seas.

Collector and Display Value

This Menuites portlocki fossil ammonite is not only a scientifically significant specimen but also a visually striking natural artifact. Its strong ribbing and distinctive shell features create excellent display appeal, making it suitable for private collections, educational use, or museum exhibitions.

Its provenance from Busko, Poland further enhances its rarity and desirability, as ammonites from this locality are far less commonly encountered than those from more well-known fossil sites.

Authenticity and Guarantee

• Authentic Menuites portlocki ammonite fossil
• Age: Lower Campanian, Late Cretaceous (approx. 83–80 million years old)
• Locality: Busko, Poland
• Supplied with a Certificate of Authenticity
• The exact fossil photographed is the specimen you will receive

This rare ammonite offers a chance to own a genuine piece of Earth’s history, beautifully preserved from the seas of the Late Cretaceous, and is an exceptional acquisition for any serious fossil enthusiast or collector.