Английская Википедия:Cryptoblastus
Материал из Онлайн справочника
Шаблон:Short description Шаблон:Italic title Шаблон:Automatic Taxobox 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
- ↑ Шаблон:Cite web
- ↑ Cryptoblastus. (2011). In Encyclopædia Britannica. Retrieved from http://www.britannica.com/EBchecked/topic/145001/Cryptoblastus