Phu Wiang 9B (Cretaceous of Thailand)

Where: Khon Kaen, Thailand (16.7° N, 102.3° E: paleocoordinates 14.3° N, 110.9° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Sao Khua Formation (Khorat Group), Late/Upper Barremian (130.0 - 125.5 Ma)

• originally considered Late Jurassic

•Non-marine bivalves suggest the Sao Khua Formation it is late Barremian (Tumpeesawan et al. 2010 and Samathi et al., 2019).

• bed-level stratigraphic resolution

Environment/lithology: "floodplain"; red claystone and sandstone

• The Khorat Group of north-eastern Thailand consists of red clay, sandstone, and conglomerate, indicating deposition in a floodplain with meandering rivers.

Size class: macrofossils

Collected by Preecha Sainongkham in 1993

Collection methods: surface (in situ),

• The bones were found in an area of about 5 square meters.

Primary reference: A. Samathi, P. Chanthasit, and P. M. Sander. 2019. Two new basal coelurosaurian theropod dinosaurs from the Lower Cretaceous Sao Khua Formation of Thailand. Acta Palaeontologica Polonica 64(2):239-260 [R. Butler/E. Dunne/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 201910: authorized by Richard Butler, entered by Emma Dunne on 10.06.2019

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Reptilia
 Theropoda -
Phuwiangvenator yaemniyomi n. gen. n. sp.
Phuwiangvenator yaemniyomi n. gen. n. sp. Samathi et al. 2019 coelurosaur
Holotype: SM-PW9B, partial skeleton consisting of a dorsal vertebra, 3 fused sacral vertebrae, R metacarpal II, R manual phalanges & unguals, R & L tibiae, L astragalocalcaneum, L metatarsal I, R metatarsals II–IV, R pedal phalanges & unguals.; from Samathi et al. 2022: a proximal and distal left fibula; left metatarsal II missing the distal end, a complete left metatarsal III, a proximal left metatarsal IV; the distal ends of the right metatarsals II and III