Kingdom Animalia Class Blastoidea Rank Genus | Subphylum Blastozoa Phylum Echinodermata | |
Similar Abrotocrinus, Dizygocrinus, Cyathocrinites, Pentremites, Taxocrinus | ||
Cryptoblastus is a genus of extinct blastoids, a primitive group of echinoderms related to the modern sea lilies. Fossils are found in sedimentary rocks laid down in the Early Carboniferous period some 360 to 320 million years ago.
References
Cryptoblastus Wikipedia(Text) CC BY-SA