Belemnotheutis

Belemnotheutis , as officially spelled, is an extinct coleoid cephalopod genus from the middle and upper Jurassic, related to but morphologically distinct from belemnites. Belemnotheutis fossils are some of the best preserved among coleoids. Remains of soft tissue are well-documented in some specimens, even down to microscopic muscle tissue. In 20...
Found on http://en.wikipedia.org/wiki/Belemnotheutis
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