Sakchai Juanngam
National Science Museum (NSM), Rama9 Museum, Department Member
- Mahasarakham University, Biology, Graduate Studentadd
- Palaeontology, Fossil Brachiopods, BRACHIOPODS CARBONIFEROUS PERMIAN, Invertebrate Paleontology, Museum Studies, Museum Education, and 15 morePermian, Palaeoecology, Taphonomy, Collections Management, Museums, Museums and Exhibition Design, Thailand, Museology, Natural History, Museum Education and Communication, Online Museum, Paleoecology, Morphometry, Morphometrics, and Museum Interpretationedit
- A Paleontologistedit
Research Interests:
A small Permian brachiopod fauna is described from new localities in northeastern Thailand. Brachiopods were collected from early Permian (Asselian) limestones of the Nam Maholan Formation and middle Permian (Murgabian) sandstones of the... more
A small Permian brachiopod fauna is described from new localities in northeastern Thailand. Brachiopods were collected from early
Permian (Asselian) limestones of the Nam Maholan Formation and middle Permian (Murgabian) sandstones of the Nam Duk Formation
and limestones of the Khao Khwang Formation. Analyses of taxa conWrm preliminary hypotheses of Cathaysian aYnities for brachiopods
and fusulinids found in this part of Thailand. Fossils found in sandstones of the Nam Duk molasse facies, however, also show
possible Gondwanan relationships with brachiopod taxa described in Australia. This has to be further tested with ongoing research in a
better understanding of the paleobiogeography of this part of Southeast Asia.
Permian (Asselian) limestones of the Nam Maholan Formation and middle Permian (Murgabian) sandstones of the Nam Duk Formation
and limestones of the Khao Khwang Formation. Analyses of taxa conWrm preliminary hypotheses of Cathaysian aYnities for brachiopods
and fusulinids found in this part of Thailand. Fossils found in sandstones of the Nam Duk molasse facies, however, also show
possible Gondwanan relationships with brachiopod taxa described in Australia. This has to be further tested with ongoing research in a
better understanding of the paleobiogeography of this part of Southeast Asia.
Research Interests:
Five new genera and species are described from brown silty mudstone near Huai Bun Nak, north-east Thailand. New taxa are Prorugaria thailandica n. gen., n. sp. (Family Rugosochonetidae); Tuberculatella tubertella n. gen., n. sp. (Family... more
Five new genera and species are described from brown silty mudstone near Huai Bun Nak,
north-east Thailand. New taxa are Prorugaria thailandica n. gen., n. sp. (Family Rugosochonetidae); Tuberculatella
tubertella n. gen., n. sp. (Family Overtoniidae); Minispina alata n. gen., n. sp. (Family Marginiferidae);
Aspinosella sinauris n. gen., n. sp. (Family Retariidae) and Mucrospiriferinella undulosa n. gen.,
n. sp. (Family Xestotrematidae). The age is considered to be younger Carboniferous.
north-east Thailand. New taxa are Prorugaria thailandica n. gen., n. sp. (Family Rugosochonetidae); Tuberculatella
tubertella n. gen., n. sp. (Family Overtoniidae); Minispina alata n. gen., n. sp. (Family Marginiferidae);
Aspinosella sinauris n. gen., n. sp. (Family Retariidae) and Mucrospiriferinella undulosa n. gen.,
n. sp. (Family Xestotrematidae). The age is considered to be younger Carboniferous.
Research Interests:
This paper deals with Permian brachiopods collected from 7 localities in the Tak Fa Formation of the Rat Buri Group, developed in the Khao Hin Klingarea, about 50 km southwest of Phetchabun. Twenty one species within seventeen genera are... more
This paper deals with Permian brachiopods collected from 7 localities in the
Tak Fa Formation of the Rat Buri Group, developed in the Khao Hin Klingarea, about
50 km southwest of Phetchabun. Twenty one species within seventeen genera are
described and discussed. Of them four species, Acosarina kanmerai, Orthotetina ruchae,
HaydeneUa grantiand Nolothyris sakagami, are newly established ones. The Khao Hin
Kling brachiopod fauna ranges from the Middle to early Late Permian. The faunal
elements contain close affinities to those of the central and southern Tethyan realms.
Tak Fa Formation of the Rat Buri Group, developed in the Khao Hin Klingarea, about
50 km southwest of Phetchabun. Twenty one species within seventeen genera are
described and discussed. Of them four species, Acosarina kanmerai, Orthotetina ruchae,
HaydeneUa grantiand Nolothyris sakagami, are newly established ones. The Khao Hin
Kling brachiopod fauna ranges from the Middle to early Late Permian. The faunal
elements contain close affinities to those of the central and southern Tethyan realms.
Research Interests:
Several localities of brachiopod faunas have been reported in the Loei area found mostly in late Palaeozoic shales and limestones. Silicifi ed articulate brachiopods were observed in the Pha Dam section east of Loei, in the Nam Suay... more
Several localities of brachiopod faunas have been reported in the Loei area found mostly in late Palaeozoic shales
and limestones. Silicifi ed articulate brachiopods were observed in the Pha Dam section east of Loei, in the Nam Suay
sub-district, Na duang district. This section is part of the Nam Mahoran Formation according to the geological map
published by DMR. It consists of brown shales and siltstones interbedded with dark grey limestones and the brachiopod
assemblage includes cf. Chonetinella, Rhipidomella, Phricodothyris, Marginifera, Reticulatia, STROPHOMENIDA
fam. indet., and SPIRIFERIDA fam. indet.. These specimens are relatively small in size, silicifi ed and mostly consist
of single-valves. The occurrence and characteristics of the brachiopods in this section differ from those reported by
previous workers in the area. This locality also contains several other abundant and diverse invertebrate groups such as
bryozoans, crinoids and solitary corals. The rocks from both sections consist of shale and limestone. The brachiopods,
corals, bryozoans and crinoids are interpreted as having lived in shallow marine or shelf environments. Preliminary
age determinations are based mainly on brachiopods and suggest that the rocks should be reassigned to the Lower
Permian which is compatible with the age assigned in the geological map of Thailand.
and limestones. Silicifi ed articulate brachiopods were observed in the Pha Dam section east of Loei, in the Nam Suay
sub-district, Na duang district. This section is part of the Nam Mahoran Formation according to the geological map
published by DMR. It consists of brown shales and siltstones interbedded with dark grey limestones and the brachiopod
assemblage includes cf. Chonetinella, Rhipidomella, Phricodothyris, Marginifera, Reticulatia, STROPHOMENIDA
fam. indet., and SPIRIFERIDA fam. indet.. These specimens are relatively small in size, silicifi ed and mostly consist
of single-valves. The occurrence and characteristics of the brachiopods in this section differ from those reported by
previous workers in the area. This locality also contains several other abundant and diverse invertebrate groups such as
bryozoans, crinoids and solitary corals. The rocks from both sections consist of shale and limestone. The brachiopods,
corals, bryozoans and crinoids are interpreted as having lived in shallow marine or shelf environments. Preliminary
age determinations are based mainly on brachiopods and suggest that the rocks should be reassigned to the Lower
Permian which is compatible with the age assigned in the geological map of Thailand.