Daily Archives: January 1, 2012

Wooster’s Fossil of the Week: A Tully Monster! (Late Carboniferous of Illinois)

We have several examples of one of the strangest fossils known: Tullimonstrum gregarium Richardson 1966 — otherwise affectionately known as the Tully Monster. The above specimen is from the Francis Creek Shale Member (Carbondale Formation) at Mazon Creek near Chicago, … Continue reading

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