description Arachnoides tenuis Overview
Arachnoides tenuis is an extinct species of sand dollar belonging to the family Arachnoididae, recognized in paleontology by its thin, flattened test and distinctive petal-like ambulacra.
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How good is Arachnoides tenuis?
Arachnoides tenuis scores 5.61/10 (Mediocre) on Lunoo, making it rated in the Sea Urchin category. Thin fossil sand-dollar form has taxonomic merit, but extinction, low visibility, and limited distinctiveness constrain acclaim.
What are the best alternatives to Arachnoides tenuis?
See our alternatives page for Arachnoides tenuis for a ranked list with scores. Top alternatives include: Fibularia volva, Mellita isometra, Long-Spined Sea Urchin (Centrostephanus rodgersii).
How does Arachnoides tenuis compare to Fibularia volva?
See our detailed comparison of Arachnoides tenuis vs Fibularia volva with scores, features, and an AI-powered verdict.
Is Arachnoides tenuis worth it in 2026?
With a score of 5.61/10, Arachnoides tenuis is a solid option in Sea Urchin. See all Sea Urchin ranked.
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