2005•Alcheringa An Australasian Journal of PalaeontologyOpen access

Early Carboniferous brachiopod faunas from the Baoshan block, west Yunnan, southwest China

G.R. Shi, Zhong‐Qiang Chen, Li-Pei Zhan

Abstract

38 brachiopod species in 27 genera and subgenera are described from the Yudong Formation in the Shidian-Baoshan area, west Yunnan, southwest China. New taxa include two new subgenera: Unispirifer (Septimispirifer) and Brachythyrina (Longathyrina), and seven new species: Eomarginifera yunnanensis, Marginatia cylindrica, Unispirifer (Unispirifer) xiangshanensis, Unispirifer (Septimispirifer) wafangjieensis, Brachythyrina (Brachythyrina) transversa, Brachythyrina (Longathyrina) baoshanensis, and Girtyella wafangjieensis. Based on the described material and constraints from associated coral and conodont faunas, the age of the brachiopod fauna from the Yudon Formation is considered late Tournaisian (Early Carboniferous), with a possibility extending into earlyViséan.

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Key concepts: Tournaisian, Carboniferous, Conodont, Fauna, Taxon, Paleontology, Subgenus, Key (lock)