Translator Disclaimer
1 January 2017 Earliest occurrence of lophogastrid mysidacean arthropods (Crustacea, Eucopiidae) from the Anisian Luoping Biota, Yunnan Province, China
Rodney M. Feldmann, Carrie E. Schweitzer, Shixue Hu, Jinyuan Huang, Changyong Zhou, Qiyue Zhang, Wen Wen, Tao Xie, Frederick R. Schram, Wade T. Jones
Author Affiliations +
Abstract

Tiny, pelagic arthropods from the Anisian Luoping Biota exposed in two quarries near Luoping, Yunnan Province, China, represent the numerically most abundant organisms in the assemblage. They form the basis for definition of two, and possibly three, species referred to the order Lophogastrida, family Eucopiidae. Yunnanocopia grandis new genus new species and Y. longicauda n. gen. new species represent the oldest occurrence of mysidaceans in the fossil record. Their anatomy allies them with the Ladinian species Schimperella acanthocercus Taylor, Schram, and Shen, 2001, from Guizhou Province, China, which previously was thought to be the oldest lophogastrid, and with extant species of Eucopiidae. Their appearance in the Anisian represents one additional element of the early faunal radiation within the Luoping Biota following the end-Permian extinction event. Presence of well-preserved oostegites, along with other morphological features, documents a conservative bauplan expressed in Eucopiidae.

© 2016, The Paleontological Society
Rodney M. Feldmann, Carrie E. Schweitzer, Shixue Hu, Jinyuan Huang, Changyong Zhou, Qiyue Zhang, Wen Wen, Tao Xie, Frederick R. Schram, and Wade T. Jones "Earliest occurrence of lophogastrid mysidacean arthropods (Crustacea, Eucopiidae) from the Anisian Luoping Biota, Yunnan Province, China," Journal of Paleontology 91(1), 100-115, (1 January 2017). https://doi.org/10.1017/jpa.2016.121
Accepted: 1 July 2016; Published: 1 January 2017
JOURNAL ARTICLE
16 PAGES


Share
SHARE
ARTICLE IMPACT
RIGHTS & PERMISSIONS
Get copyright permission
Back to Top