†Periarchus pileussinensis Ravenel 1844 (sand dollar)
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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
Specimen images are retrieved through the ePANDDA API.
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