title: Proisocrinus
text: # Proisocrinus
  
  Proisocrinus ruberrimus is a species of crinoids that is in the monotypic genus Proisocrinus. The genus is in the monotypic family Proisocrinidae
  
  ## Genus and species
  
  * Proisocrinidae
     * Proisocrinus
        * P. ruberrimus
  