Books with title Crinoids And Blastoids

Today's oceans are home to a wide variety of life, but what kind of mysterious aquatic creatures lurked in the water millions of years ago? Crinoids and Blastoids teaches kids about the plantlike animals that inhabited ancient seas and were the early relatives of sea urchins and sea stars.

Introduces the prehistoric plant-like sea animals, discussing their physical characteristics, habitat, and behavior.