^pof;
Resource;
and;
Earth;
Science,;
China;
University;
of;
Mining;
and;
Technology,;
Xuzhou;
221116,;
China;
^pKey;
Laboratory;
of;
Palaeobiology;
and;
Stratigraphy,;
Nanjing;
Institute;
of;
Geology;
and;
Palaeontology,;
Chinese;
Academy;
of;
Sciences,;
Nanjing;
210008,;
China;
