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Hardouinia mortonis - Sea Urchin
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Hardouinia mortonis

description Hardouinia mortonis Overview

Hardouinia mortonis is an extinct cassiduloid sea urchin known from Maastrichtian rocks about 70 to 66 million years old in the southeastern United States.

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How good is Hardouinia mortonis?
Hardouinia mortonis scores 7.83/10 (Good) on Lunoo, making it a well-rated option in the Sea Urchin category. Well-regarded fossil echinoid with strong Cretaceous collecting and stratigraphic interest; inaccessible to ordinary user-rating communities.
What are the best alternatives to Hardouinia mortonis?
See our alternatives page for Hardouinia mortonis for a ranked list with scores. Top alternatives include: Tripneustes californicus, Tripneustes antiquus, Amblypneustes corrali.
How does Hardouinia mortonis compare to Tripneustes californicus?
See our detailed comparison of Hardouinia mortonis vs Tripneustes californicus with scores, features, and an AI-powered verdict.
Is Hardouinia mortonis worth it in 2026?
With a score of 7.83/10, Hardouinia mortonis is a solid option in Sea Urchin. See all Sea Urchin ranked.

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