Phymosomatidae
Phymosomatidae
[‚fī·mə·sō′mad·ə‚dē] (invertebrate zoology)
A family of echinacean echinoderms in the order Phymosomatoida with imperforate crenulate tubercles; one surviving genus is known.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.