†Echinocyamus polymorpha Duncan and Sladen 1883 (sand dollar)
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Echinoidea - Clypeasteroida - Fibulariidae
Alternative combination: Sismondia polymorpha
Belongs to Echinocyamus according to J. Roman 1976
Sister taxa: Echinocyamus bisexus, Echinocyamus chipolanus, Echinocyamus crispus, Echinocyamus huxleyanus, Echinocyamus intermedius, Echinocyamus meridionalis, Echinocyamus parviporus, Echinocyamus parvus, Echinocyamus petalus, Echinocyamus prostratus, Echinocyamus pusillus, Echinocyamus terminalis, Echinocyamus texanus, Echinocyamus vaughani, Echinocyamus wilsoni
Ecology: slow-moving semi-infaunal detritivore
Distribution:
• Miocene of Northern Mariana Islands (3 collections)
• Eocene of Qatar (5)
Total: 8 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
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