Where: Thailand (19.0° N, 98.0° E: paleocoordinates 22.8° S, 112.5° E)

• coordinate stated in text

• outcrop-level geographic resolution

When: Chadian (346.7 - 340.0 Ma)

• STRATIGRAPHIC RELATIONS: From unnamed lithostratigraphic unit, which is part of a Silurian-Carboniferous succession. AGE: middle Early Carboniferous, on the basis of radiolarian biostratigraphy; latest Tournasian-earliest Visean = Chadian; here placed in Chadian to avoid stratigraphic orphaning. STRATIGRAPHIC POSITION: From stop 19; unknown position in section, as figure 2 (stratigraphic section) shows differing locations of four "stop 19" samples.

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified, cherty/siliceous shale

Size class: macrofossils

Collection methods: bulk, chemical, hydroflouric, sieve,

• COLLECTORS: Not stated, but presumably by some of the authors. REPOSITORY: Palaeontology Laboratory, Faculty of Earth Sciences, China University of Geosciences, Wuhan, People’s Republic China. PREPARATION METHODS: Samples were divided into two parts: one part was retained as an accessory sample and the other part processed. The sample was fragmented and placed in 5 per cent HF for 24 hours. The solution was repeatedly decanted and refilled using water until neutral, and then sieved at 300 mm. The remaining residue was dried and scanned using a stereoscopic microscope. Fossil radiolarians were recovered from each of the 11 samples, but were well preserved in only four.

Primary reference: Q. Feng, D. Helmcke, C. Chonglakmani, R. Ingavat-Helmcke, and B. Liu. 2004. Early Carboniferous radiolarians from north-west Thailand: paleogeographical implications. Palaeontology 47(2):377-393 [A. Hendy/A. Hendy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 90896: authorized by Austin Hendy, entered by Austin Hendy on 24.08.2009

Creative Commons license: CC BY (attribution)