Ventral—pertaining to the abdomen; as opposed to [dorsal], pertaining to the back.
Vertebrate—an animal having a backbone or spinal column.
Whorl—a single turn or volution of a coiled shell.
-zoic—combining form meaning “life” (Greek zoikos, life).
Zooecium (plural, zooecia)—tube or chamber occupied by an individual of the bryozoan colony; also called an autopore.
Footnotes
[1]Associate Professor of Geology, Lamar State College of Technology, Beaumont, Texas.
[2]Entries marked with asterisk are published by the Bureau of Economic Geology, The University of Texas, Austin. Those not out of print are distributed at nominal sale price; list sent on request. These publications may be consulted at many public libraries and/or Chamber of Commerce offices.
Index
Page numbers in italics indicate illustrations.