Periarchus pileussinensis Ravenel 1844 (sand dollar)

Echinoidea - Clypeasteroida - Protoscutellidae

Alternative combination: Scutella pileussinensis

Belongs to Periarchus according to W. B. Clark and M. W. Twitchell 1915

Sister taxa: Periarchus altus, Periarchus kewi, Periarchus lyelli, Periarchus protuberans, Periarchus quinquefarius, Periarchus rutriformis

Ecology: slow-moving semi-infaunal detritivore

Distribution:

• Eocene of United States (7: Alabama collections)

Total: 7 collections each including a single occurrence

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Specimen images are retrieved through the ePANDDA API.


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