Late Devonian conodonts and the global Frasnian-Famennian extinction event, Thong Pha Phum, western Thailand

Late Devonian sedimentary record of the Paleotethys Ocean – The Mae Sariang section, northwestern Thailand

“…In comparison to the whole section, the F/F boundary interval is the most important one, representing one of the major biodiversity crisis in the Devonian and the Phanerozoic (e.g. Sepkoski, 1996;Walliser, 1996a,b;House, 2002;Bambach et al, 2004; see Section 1) and is recognised also in the Mae Sariang section in northern Thailand, in addition to the central Thailand succession (Savage et al, 2006). The occurrence of sulphide-forming element enrichments in several layers, which is not restricted to the F/F boundary interval, could indicate that at times the boundary between oxidising and reducing conditions was pushed down from an otherwise stratified water column to the sediment-water interface, or below it as it has also been described from coeval sections Riquier et al (2006).…”

“…Loei Province, Fontaine and Tantiwanit, 1987;Fontaine, 1990;Chairangsee et al, 1990;Sashida et al, 1993;Fontaine et al, 2009) as well as the western part and southern regions, particularly in Satun Province (e.g. Long and Burrett, 1989a,b;Wongwanich et al, 1990;Savage et al, 2006). Generally the rocks are intensely folded and thrusted.…”

Nd isotopic composition of Late Devonian seawater in western Thailand: Geotectonic implications for the origin of the Sibumasu terrane

“…The Thong Pha Phum section ( Fig. 3; see Savage et al, 2006 for details of location) is only about 7 m thick. While its Frasnian part is composed of thin bedded limestones, the Famennian is mostly represented by thick bedded limestones.…”

“…While its Frasnian part is composed of thin bedded limestones, the Famennian is mostly represented by thick bedded limestones. Savage et al (2006) described the conodont fauna and showed the stratigraphic range of the sequence, from the Upper rhenana Zone to the Upper triangularis Zone. The Mae Sariang site occurs approximately 350 km north of Thong Pha Phum.…”

Record of climate-driven morphological changes in 376 Ma Devonian fossils

“…Carbon stable isotope data suggest that each Kellwasser event coincided with a phase of enhanced organic carbon burial translated in positive carbon isotope excursions of ~3‰ both in inorganic and organic fractions (Buggisch and Joachimski, 2006;Chen et al, 2005;Joachimski et al, 2001Savage et al, 2006). For comparison, the amplitude of the inorganic and organic carbon isotope variation at the Cenomanian-Turonian boundary is only 2‰ (Arthur et al, 1988).…”