ammonites
Lower Hong Hoi Formation, Ban Pang La, Lampang-Phrae Basin, N Thailand (Triassic of Thailand)

Where: Thailand (18.5° N, 99.8° E: paleocoordinates 0.3° N, 86.2° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Hong Hoi Formation (Lampang Group), Ladinian (242.0 - 235.0 Ma)

• 1350 m thick total.

• formation-level stratigraphic resolution

Environment/lithology: marine; siliciclastic sediments and limestone

• Mudstone, quartzite-like sandstone, siltstone, greywacke, calcareous mudstone, and interbedded limestone.

Size class: macrofossils

Primary reference: V. Khuc. 2000. The Triassic of Indochina Peninsula and its interregional correlation. Permian-Triassic Evolution of Tethys and Western Circum-Pacific 221-233 [D. Bottjer/M. Clapham/M. Clapham] more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 44808: authorized by David Bottjer, entered by Matthew Clapham on 17.09.2004