A diverse ichnofauna from the Cambrian Stage 4 Wulongqing Formation near Kunming (Yunnan Province, South China)

AbstractBrachiopod shell accumulations are abundant and diverse in the lower Cambrian strata of Yunnan Province, South China, but most commonly they are composed of linguloid and acrotheloid brachiopods. Here, we describe the first record of shell beds with high-density accumulations of microscopic acrotretoid brachiopods (usually <2 mm in width) in the muddy deposits of the Wulongqing Formation (Guanshan Biota, Cambrian Stage 4) in the Wuding area of Yunnan Province. The acrotretoid shell beds from the Wulongqing Formation vary from thin mm-thick pavements to more well-developed beds, several centimeters thick. The occurrence of remarkably rich acrotretoid shell beds indicates that microscopic lingulates began to exert an important role in hardening and paving the soft-substrate seafloor during the early Cambrian evolution of Phanerozoic “mixgrounds.” The new Guanshan material is referred to a new species, Linnarssonia sapushanensis n. sp., which differs from other species of Linnarssonia mainly in having a well-developed internal pedicle tube, as well as a relatively longer dorsal median septum. The occurrence of Linnarssonia sapushanensis n. sp. in the Wulongqing Formation in eastern Yunnan extend the oldest record of the genus on the Yangtze Platform of South China back to at least Cambrian Stage 4.UUID: http://zoobank.org/3e0c3878-6ce2-4eed-87bf-e39647c310c4

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First report of linguloid brachiopods with soft parts from the lower Cambrian (Series 2, Stage 4) of the Three Gorges area, South China

Annales de Paléontologie ◽

10.1016/j.annpal.2015.04.002 ◽

2015 ◽

Vol 101 (3) ◽

pp. 167-177 ◽

Cited By ~ 9

Author(s):

Zhifei Zhang ◽

Zhiliang Zhang ◽

Lars. E. Holmer ◽

Guoxiang Li

Keyword(s):

South China ◽

Lower Cambrian ◽

Three Gorges ◽

First Report ◽

Three Gorges Area ◽

The Three Gorges ◽

Stage 4

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Taxonomic updates and descriptions of four new Lophopini planthopper species (Hemiptera, Fulgoroidea, Lophopidae) from Yunnan province, South China

European Journal of Taxonomy ◽

10.5852/ejt.2016.185 ◽

2016 ◽

Cited By ~ 1

Author(s):

Menglin Wang ◽

Adeline Soulier-Perkins ◽

Yinglun Wang ◽

Thierry Bourgoin

Keyword(s):

New Species ◽

South China ◽

Yunnan Province ◽

Identification Key ◽

Three New Species ◽

One New Species

Taxonomic updates and descriptions of four new species from Yunnan, China are provided: three new species in the genus Pitambara Distant, 1906: P. triremiprocta Wang & Soulier-Perkins, sp. nov., P. impudica Wang & Bourgoin, sp. nov., P. tricorne Wang & Wang, sp. nov., and one new species in the genus Serida Walker, 1857: Serida parenthesisflexuosa Wang & Soulier-Perkins, sp. nov. A new identification key to Pitambara species is provided, as well as to the species of the genus Lacusa Stål, 1862. Lacusa yunnanensis Chou & Huang, 1985 stat. rev. is not considered as a synonym of the species L. fuscofasciata (Stål, 1854) anymore and Lacusa orientalis (Liang, 2000) is transferred to the genus Acothrura Melichar, 1915 as Acothrura orientalis (Liang, 2000) comb. nov.

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