Helicoplacoidea
Extinct class of echinoderms / From Wikipedia, the free encyclopedia
Helicoplacoidea is an extinct class within the Echinodermata. All known taxa were discovered in sediments dating back to the Cambrian.[1][2]
Quick Facts Scientific classification ...
Helicoplacoidea | |
---|---|
The holotype specimen of Helicoplacus guthi[1] | |
Scientific classification | |
Kingdom: | |
Phylum: | |
Class: | †Helicoplacoidea |
|
Close