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A new millipede (Diplopoda, Helminthomorpha) from the Middle Triassic Luoping biota of Yunnan, Southwest China

Published online by Cambridge University Press:  26 March 2018

Jinyuan Huang
Chengdu Center of China Geological Survey, Chengdu 610081, China 〈〉, 〈〉, 〈〉, 〈〉, 〈〉, 〈〉 Institute of Geological Survey, China University of Geosciences (Wuhan), Wuhan 430074, China
Joseph T. Hannibal
Cleveland Museum of Natural History, 1 Wade Oval Drive, Cleveland, OH 44106-1767, U.S.A., 〈〉
Rodney M. Feldmann
Department of Geology, Kent State University, Kent, Ohio 44242, U.S.A., 〈〉
Qiyue Zhang
Chengdu Center of China Geological Survey, Chengdu 610081, China 〈〉, 〈〉, 〈〉, 〈〉, 〈〉, 〈〉
Shixue Hu
Chengdu Center of China Geological Survey, Chengdu 610081, China 〈〉, 〈〉, 〈〉, 〈〉, 〈〉, 〈〉
Carrie E. Schweitzer
Department of Geology, Kent State University at Stark, 6000 Frank Avenue NW, North Canton, Ohio 44720, U.S.A., 〈〉
Michael J. Benton
School of Earth Sciences, University of Bristol, Bristol BS8 1RJ, UK, 〈〉
Changyong Zhou
Chengdu Center of China Geological Survey, Chengdu 610081, China 〈〉, 〈〉, 〈〉, 〈〉, 〈〉, 〈〉
Wen Wen
Chengdu Center of China Geological Survey, Chengdu 610081, China 〈〉, 〈〉, 〈〉, 〈〉, 〈〉, 〈〉
Tao Xie
Chengdu Center of China Geological Survey, Chengdu 610081, China 〈〉, 〈〉, 〈〉, 〈〉, 〈〉, 〈〉


A new helminthomorph millipede, Sinosoma luopingense new genus new species, from the Triassic Luoping biota of China, has 39 body segments, metazonites with lateral swellings that bear a pair of posterolateral pits (?insertion pits for spine bases), and sternites that are unfused to the pleurotergites. This millipede shares a number of characters with nematophoran diplopods, but lacks the prominent dorsal suture characteristic of that order. Other “millipede” material from the biota is more problematic. Millipedes are a rare part of the Luoping biota, which is composed mainly of marine and near-shore organisms. Occurrences of fossil millipedes are exceedingly rare in Triassic rocks worldwide, comprising specimens from Europe, Asia, and Africa, and consisting of juliform millipedes and millipedes that are either nematophorans or forms very similar to nematophorans.

Copyright © 2018, The Paleontological Society 

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