ammonites
Proceratopyge protracta Peng 1992 (trilobite)

Trilobita - Asaphida - Ceratopygidae

Full reference: S. Peng. 1992. Upper Cambrian biostratigraphy and trilobite faunas of the Cili-Taoyuan area, northwestern Hunan, China. Memoir of the Association of Australasian Palaeontologists 13:1-119

Belongs to Proceratopyge according to S. Peng 1992

Sister taxa: Proceratopyge (Lopnorites), Proceratopyge (Sinoproceratopyge), Proceratopyge conifrons, Proceratopyge cylindrica, Proceratopyge distensa, Proceratopyge fenghwangensis, Proceratopyge fuyangensis, Proceratopyge incondita, Proceratopyge longa, Proceratopyge mirabilis, Proceratopyge promisca, Proceratopyge tenuita, Proceratopyge truncata, Proceratopyge waergangensis, Proceratopyge zhejiangensis

Type specimen: Its type locality is Wa'ergang, unit 9, 16, which is in a Paibian slope limestone in the Huaqiao Formation of China

Ecology: fast-moving low-level epifaunal deposit feeder