Phu Wiang 9 (Cretaceous to of Thailand)

Also known as P.W.9, Siamotyrannus type

Where: Khon Kaen, Thailand (16.7° N, 102.3° E: paleocoordinates 14.3° N, 112.4° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Sao Khua Formation (Khorat Group), Barremian to Barremian (129.4 - 113.0 Ma)

• formation-level stratigraphic resolution

Environment/lithology: terrestrial; red sandstone

Size class: macrofossils

Collected by S. Triamwichanon in 1993

Collection methods: quarrying, mechanical,

• discovered by Somchai Triamwichanon

Primary reference: E. Buffetaut, V. Suteethorn, V. Martin, H. Tong, Y. Chaimanee and S. Triamwichanon. 1995. New dinosaur discoveries in Thailand. International Conference on Geology, Geotechnology and Mineral Resources of Indochina (Geo-Indo '95), 22-25 November 1995, Khon Kaen, Thailand 157-161 [M. Carrano/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 36160: authorized by Matthew Carrano, entered by Matthew Carrano on 14.01.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

 Avetheropoda - Metriacanthosauridae
Siamotyrannus isanensis n. gen. n. sp.
Siamotyrannus isanensis n. gen. n. sp. Buffetaut et al. 1996 Siam tyrant