Tonkinella stephensis

Name: Tonkinella stephensis
Size: 5 cm
Locality: Nixon Gulch, Manhattan, Montana
Stratigraphy: Wolsey Formation, Middle Cambrian
Remarks: One piece has the distinctive 5-segment thorax and incised pygidium. The
other has a small cephalon (the only species from there with a
pear-shaped glabella with anterior expansion.
Compliments of: Collected by Robert Hazen, photographed by Richie Kurkewicz

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