Daily Archives: February 3, 2017

Wooster’s Fossils of the Week: Peanut worms from the Silurian of Illinois

This week’s fossils are a set of cool sipunculan worms from the Lockport Shale Member of the Racine Formation (Wenlockian, Silurian) of Blue Island, Illinois (which, it turns out, is not an island.). This is Lecthaylus gregarius Weller, 1925. (There … Continue reading

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