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American carpoid echinoderm – Ctenocystis

$49

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SKU: 6936 Category: Tags: ,

Description

Ctenocystis utahensis Robison & Sprinkle
Middle Cambrian
Spence Shale
Antimony Canyon, Wellsville Mtn., UT, USA

Fine tiny 3mm carpoid on 45mm slab

What is a carpoid? This article explains them (PDF)

Additional information

Weight 20 g