Hardounia kellumi – Fossil Echinoid


Hardouinia kellumi – Fossil EchinoidCretaceous – North Carolina Fossil 

Quick FactsSpecies: Hardouinia kellumi
Type: Fossil Echinoid (Sea Urchin)
Age: Late Cretaceous (approx. 70–85 million years old)
Origin: North Carolina, USA Formation: Marine sedimentary deposits

THE SPECIMENThis fossil echinoid is a well‑preserved example of Hardouinia kellumi, a Cretaceous sea urchin known for its smooth, heart‑shaped test and subtle star‑patterned ambulacra. These specimens typically show excellent detail, including:
  • the five‑petaled ambulacral pattern
  • natural symmetry of the test
  • fine surface texture
  • intact overall shape
  • North Carolina specimens are especially appreciated for their clean preservation, soft sandy coloration, and the gentle curvature of the shell. Each fossil reflects the quiet marine environments of the ancient Atlantic Coastal Plain.
    Collectors value Hardouinia kellumi for its aesthetic form, scientific importance, and its connection to the rich fossil history of the southeastern United States.

  • ABOUT THIS FIND
  • The LocalityFossils of Hardouinia kellumi are found in Cretaceous marine sediments across parts of North Carolina, particularly in:
  • the Peedee Formation
  • the Black Creek Group
  • coastal plain exposures
  • These layers represent ancient shallow seas that once covered the region during the Late Cretaceous.

  • The FormationAs these echinoids lived on or just beneath the seafloor, their tests were quickly buried by fine marine sediments after death. Over millions of years, the sediments lithified into sandstone, marl, or limestone, preserving the echinoids in remarkable detail.
    The calm, low‑energy marine environment allowed the delicate features of the test to remain intact, resulting in the high‑quality fossils found today.

  • MINERALOGY / FOSSIL COMPOSITIONMaterial: Original calcite test often preserved as:
  • calcite replacement
  • natural molds and casts
  • partially mineralized shells
  • Coloration: Soft tones of cream, tan, or pale brown depending on sediment composition.
    Preservation Style: Typically preserved as full 3‑D tests, sometimes with minor compression or matrix attachment.

  • METAPHYSICAL PROPERTIESThe Stone of “Ancient Harmony”Fossil echinoids are associated with balance, protection, and the cyclical nature of life.
    Earth Connection: Linked to the Root Chakra, they are believed to ground the user and connect them to ancient Earth energies.
    Flow & Stability: The five‑fold symmetry symbolizes harmony, natural order, and emotional balance.
    Wisdom of the Sea: As creatures of ancient oceans, echinoid fossils are often used to support:
  • intuition
  • calmness
  • steady personal growth
  • Collectors appreciate them as symbols of resilience and the enduring patterns of nature.
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