I went shopping for a nice Cystoid (We don't have in my area as far as I know) - Bought a Holocystites scutellatus - When researching the taxonomy, Wikipemedia Commons gives the following:
Regnum: Animalia • Phylum: Echinodermata • Subphylum: Blastozoa • Classis: Cystoidea • Ordo: Aristocystitida • Familia: Aristocystitidae • Genus: Holocystites Hall, 1864
Fossilworks gives: Kingdom: Animalia Phylum: Echinodermata Subphylum: †Blastozoa - Sprinkle 1973 Class: †Diploporita Superfamily: †Sphaeronitida Family: †Holocystitidae
Genus: †Holocystites
So - Is it a CYSTOID or a BLASTOID? Or is science not sure????
I bought another one that Fossilworks DOES classify as a cystoid. Did some reading... seems the fossils from this location are listed as Holocystites and Cystoids. Any insight here?
I am trying to build a nice representative collection, so I can start identifying on my own... and try to study when I have the time!!!
Dave Ruckser