(Blacksburg, Va., April 6, 2001) – Some marine gastropods (snails) dine by drilling holes in clams and other shellfish. These predators eat the flesh through the hole that they drill in their prey. It's been going on for -- well, that's the question. Today's drilling gastropods have been around since the Early Triassic (about 210 million years). Now, a Virginia Tech doctoral student has discovered signs of drilling in clams (bivalve mollusks) and another bivalved organism, brachiopods, as far back as 290 million years ago, in the Permian period. What was dining in this fashion so long ago?
The above story is based on materials provided by Virginia Tech. Note: Materials may be edited for content and length.
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