A complete caylx

Submitted by: David Thompson
Taxon: Athroacantha carpenteri
Submit date: 2008-11-23
Location (approximate): Sylvania, Lucas, OH
Stratigraphy: Silica Formation
Age: Erian (Middle Devonian)
Submitter notes: This lovely, complete caylx was found in the bottom of a boot print on the spoil piles of Sylvania, Ohio where I was able to retrieve it! 'acantha' means 'prickly' in Latin and each of the pustules on this calyx had a tiny movable spine on it to repel predators. these are often preserved but not in this specimen.

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