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Lower and Middle Ordovician conodonts from the Thung Song and Thung Wa areas, southern peninsular Thailand

2006; Volume: 10; Issue: 3 Linguagem: Inglês

10.2517/prpsj.10.215

1880-0068

Sachiko Agematsu, Katsuo Sashida, Sirot Salyapongse, Apsorn Sardsud,

Geology and Paleoclimatology Research

Lower and Middle Ordovician conodonts from the Thung Song Group, in the Thung Song and Thung Wa areas of southern peninsular Thailand, are described and illustrated here for the first time. These conodonts are divided into faunas A, B, and C, which are middle to late Arenigian, middle Arenigian to Darriwilian or Caradocian, and late Arenigian to early Caradocian, respectively. Fauna A resembles faunas in Australia, South China, the Argentine Precordillera, and North America. Fifteen species belonging to twelve genera were studied systematically.