| Archaeocrinus sundayae Cupulocrinus humilis Bobcaygeon Fm. Brechin, Ontario, Canada Size: 5.6 cm Archaecrinus crown and 5.5 cm Cupulocrinus crown There is a third crown (Cupulocrinus) poking out under the Archaeocrinus. Measurements do not include stem portions. There is a bryozoa lying across the Cupulocrinus arms. Price: $225 US ID number: f2303 | 
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