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FOSSILS & NATURAL HISTORY · K–PG BOUNDARY

Dinosaur Extinction Event

Dinosaur Extinction Event

A sample of clay from the Cretaceous-Paleogene (K-Pg) extinction event for the dinosaur lover that wants the bigger story.

$69.00
$69.00
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INCLUDED WITH THIS DISPLAY

  • K–Pg boundary clay sample
  • Freestanding acrylic display
  • Specimen jar
  • Certificate of authenticity
  • Black cotton-padded gift box
Read the full specimen description

Hold the Moment the Dinosaurs Vanished, C. 66 Million Years Ago, Paleocene

An unassuming layer of clay holds one of the most dramatic chapters in Earth’s history: the Cretaceous-Paleogene (K-Pg) extinction event, which ended the reign of the dinosaurs 66 million years ago. Formed in the aftermath of a colossal asteroid impact near modern-day Mexico, this thin sedimentary band is found across the globe, marking the boundary between the Mesozoic and Cenozoic eras.

Rich in iridium — an element rare on Earth but common in asteroids — this clay is geological proof of the cataclysm that reshaped life on our planet. Over 75% of Earth’s species vanished, paving the way for mammals, and eventually humans, to rise.

Now, you can own a genuine sample of this boundary layer, a physical fragment of deep time. Whether you're a fossil enthusiast, a collector of cosmic history, or a lover of natural wonder, this artifact offers a rare and humbling connection to Earth's most pivotal moment. 

Our samples of this 66 million year old clay come from one of the best-preserved K–Pg transitions found in Bidart, France. The 5.6" acrylic display contains a roughly 5mm sample in a clear removable jar.

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FOSSILS & NATURAL HISTORY · K–PG BOUNDARY

A boundary between two worlds.

This small clay sample comes from the Cretaceous–Paleogene boundary at Bidart, France. That geological horizon records a turning point around 66 million years ago, when the Chicxulub impact and a mass extinction transformed life on Earth.

Specimen facts & provenance

Specimen: K–Pg boundary clay
Reported locality: Bidart, France
Boundary age: Approximately 66 million years
Geological context: Cretaceous–Paleogene transition

Authenticity & documentation

Source attribution. Acquired from an established specialist geological specimen dealer. Identification and collection locality follow the supplied attribution.

Geological evidence. Published studies document an iridium anomaly in Bidart’s boundary layer. That evidence supports the layer’s significance; no iridium concentration is assigned to the individual sample in this display.

Scientific context. Research on the Bidart boundary layer ↗ This reference explains the geology; specimen attribution comes from our supplier.

Included documentation. Your display includes a Chronarium Collection Certificate of Authenticity recording our identification of the material.

How Chronarium supports authenticity

A CLOSER LOOK AT YOUR SPECIMEN

Small details. Extraordinary stories.

Each display contains a unique, authentic specimen, similar in size and quality to the examples shown. Your specimen comes in a removable clear jar, so you can take it out of the display for a closer look.

A PLACE IN YOUR COLLECTION

Ready to display, ready to gift.

Each museum-quality display is hand-made in North Carolina, USA and features information about your authentic artifact, a removable specimen jar, and high quality artwork. It's ready to display on a shelf or to gift in the included padded gift box. 

Included with this display

  • Authentic specimen in removable jar
  • Freestanding acrylic display
  • Certificate of authenticity
  • Black cotton-padded gift box

  • Authentic finds

    We source from established archeological sites, dealers and auction houses. None of our specimens are reproductions.

  • History you can touch

    Each specimen is enclosed in a clear protective jar backed by soft foam, which you can open to examine your piece of history.

  • Museum-quality displays

    Assemble your home museum with our custom specimen displays, hand-crafted in our US workshop and tailored to each specimen.