Temporal range: 93.6–3.6 Ma Late Cretaceous - late Pliocene
Teredina shells consist of 2 short, hooked valves with a pair of furrows and each valve with transverse ridges. The overall body was long and clud-shaped. Teredina used the ridges on each valve to bore into drift wood by rocking back and forth; its long body shape allowed for large intestines for it to carry bacteria capable of breaking down the cellulose in the wood.Petrified drift wood with Teridina burrows can be found in the Cretaceous rocks of Vancouver Island.
- Fossils (Smithsonian Handbooks) by David Ward (Page 111)
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