Cryptoblastus

Cryptoblastus
Temporal range: Mississippian
Scientific classification
Kingdom: Animalia
Phylum: Echinodermata
Subphylum: Crinozoa
Class: Crinoidea
Genus: Cryptoblastus (extinct)

Cryptoblastus is a genus of extinct blastoids, a primitive group of echinoderms related to the modern sea lilies.[1] Fossils are found in sedimentary rocks laid down in the Early Carboniferous period some 360 to 320 million years ago. [2]

References

  1. "Blastoid Association Plate from Burlington Formation". The Virtual Fossil Museum: Fossils Across Geological Time and Evolution. Retrieved June 27, 2009.
  2. Cryptoblastus. (2011). In Encyclopædia Britannica. Retrieved from http://www.britannica.com/EBchecked/topic/145001/Cryptoblastus
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