Helicoplacoidea - Helicoplacidae

Synonyms: Helicoplacus casteri Durham 1993, Helicoplacus curtisi Durham and Caster 1963, Helicoplacus everndeni Durham 1967, Helicoplacus firbyi Durham 1967, Helicoplacus guthi Durham 1993, Westgardella blancoensis Durham 1993, Westgardella curtisi Durham and Caster 1963, Westgardella firbyi Durham 1967

Full reference: J. W. Durham and K. E. Caster. 1963. Helicoplacoidea: a new class of echinoderms. Science 140(3568):820-822

Belongs to Helicoplacus according to B. C. Wilbur 2006

See also Durham 1967, Durham 1993 and Durham and Caster 1963

Sister taxa: none

Type specimens:

• Helicoplacus gilberti: UCMP 37847
• Helicoplacus casteri: UCMP 38155.
• Helicoplacus curtisi: 37844, a shell.
• Helicoplacus everndeni: UCMP 14770.
• Helicoplacus guthi: UCMP 38165.
• Westgardella blancoensis: UCMP 37848.
• Westgardella firbyi: UCMP 30143.

Ecology: stationary epifaunal suspension feeder

Distribution: found only at WP-1, Westgard Pass [Upper Poleta Fm] (Cambrian of California)

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Specimen images are retrieved through the ePANDDA API.