†Passalocrinus Peck 1936 (blastoid)
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Parent taxon: Blastoidea according to G. D. Sevastopulo 2005
See also Sepkoski 2002 and Ubaghs et al. 1978
Sister taxa: Coronoidea, Dissimiloblastus, Eublastoidea, Freisoblastus, Lotusoblastus, Lysocystites, Macurdablastus, Spiraculata, Zygocrinus
Subtaxa: Passalocrinus uralicus
Ecology: stationary intermediate-level epifaunal suspension feeder
Distribution:
• Carboniferous of the Russian Federation (1 collection), United States (7: Indiana, Missouri, Tennessee)
• Silurian of United States (5: Indiana, Missouri, Oklahoma, Tennessee)
Total: 13 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
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