Blastozoa

Directory

References

Discover

Thumbnail for flags that look alike quiz Russia, Slovenia, Iceland, Norway

Flags That Look Alike

Santa Claus flying in his sleigh, christmas, reindeer

Was Santa Claus a Real Person?

Woman tied to a ducking stool, a method of punishment by means of humiliation, beating, or death. (cucking stool)

8 Unusual Punishments Inflicted on Women Throughout History

New York NY/ USA- November 23, 2018 Hordes of shoppers throng the Macy's Herald Square flagship store in New York looking for bargains on the day after Thanksgiving, Black Friday.

Why Is It Called Black Friday?

A human Inuit skull in a stone chambered cairn in Ilulissat in Greenland. These ancient graves are pre christian and are at least 2000

14 Tough Questions Answered

Iraqi Army Soldiers from the 9th Mechanized Division learning to operate and maintain M1A1 Abrams Main Battle Tanks at Besmaya Combat Training Center, Baghdad, Iraq, 2011. Military training. Iraq war. U.S. Army

8 Deadliest Wars of the 21st Century

Thanksgiving Celebration Traditional Dinner Setting Food Concept

Why Is Thanksgiving in the U.S. Celebrated on a Thursday?

Blastozoa

fossil echinoderm subphylum

Also known as: blastozoan

Learn about this topic in these articles:

annotated classification

In echinoderm: Annotated classification
†Subphylum Blastozoa (blastozoans) Cambrian to Permian about 280,000,000–540,000,000 years ago. Stalked echinoderms with soft parts enclosed in a globular theca (chamber) equipped with simple, erect food-gathering appendages (brachioles). †Class Eocrinoidea Lower Cambrian to Silurian about 430,000,000–570,000,000 years ago; body usually
Read More