Crinoids and BlastoidsBook - 2005
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.
Publisher: Chanhassen, MN : Child's World, 2005
Characteristics: 32 p. : col. ill. ; 25 cm