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