Somsak Sand Pit: Late/Upper Miocene, Thailand

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Angiospermae - Malvales - Dipterocarpaceae
Dipterocarpaceae indet. von Blume 1825
"dipterocarps"
cf. Parashorea sp. Kurz 1870
Angiospermae - Arecaceae
cf. Corypha sp. Linnaeus
Angiospermae - Myrtales - Combretaceae
cf. Terminalia sp. Linnaeus 1767
Mammalia - Proboscidea - Deinotheriidae
Deinotherium indicum (Falconer 1845)
original and current combination Dinotherium indicum
Mammalia - Proboscidea - Gomphotheriidae
Gomphotherium sp. Burmeister 1837
Mammalia - Proboscidea - Stegodontidae
Stegolophodon sp. Pohlig 1888
Mammalia - Proboscidea - Elephantidae
Stegodon sp. Falconer 1857
"primitive"
Mammalia - Anthracotheriidae
Microbunodon milaensis Lihoreau et al. 2004
Chaimanee et al. 2006
Merycopotamus medioximus Lihoreau et al. 2004
Chaimanee et al. 2006
Mammalia - Giraffidae
Sivatherium sp. Falconer and Cautley 1836
    = Giraffidae indet. Gray 1821
Chaimanee et al. 2006
Mammalia - Bovidae
Bovidae indet. Gray 1821
Mammalia - Suidae
Hippopotamodon sivalense
Propotamochoerus cf. hysudricus Stehlin 1899
Chaimanee et al. 2006
Mammalia - Perissodactyla - Equidae
Hipparionini indet. Quinn 1955
    = Hipparion sp. de Christol 1832
Chaimanee et al. 2006
Mammalia - Perissodactyla - Rhinocerotidae
Brachypotherium perimense
Alicornops complanatum (Heissig 1972)
Chilotherium palaeosinense
Mammalia - Primates - Hominidae
Khoratpithecus piriyai n. gen., n. sp. Chaimanee et al. 2004
Reptilia - Crocodylia
Crocodylia indet. (Owen 1842)
Chaimanee et al. 2006
"crocodile"
Reptilia - Testudines - Testudinidae
cf. Colossochelys atlas Falconer and Cautley 1844
Chaimanee et al. 2006
synonym of Megalochelys sivalensis
Actinopteri
Teleostei indet. Müller 1846
Chaimanee et al. 2006
"fish"
see common names

Geography
Country:Thailand State/province:Nakorn Ratchasima County:Chalerm Prakieat
Coordinates: 15.0° North, 102.3° East (view map)
Paleocoordinates:14.1° North, 102.2° East
Basis of coordinate:stated in text
Geographic resolution:outcrop
Time
Period:Neogene Epoch:Miocene
10 m.y. bin:Cenozoic 6
Key time interval:Late/Upper Miocene
Age range of interval:11.63000 - 5.33300 m.y. ago
Stratigraphy
Stratigraphic resolution:group of beds
Stratigraphy comments: mammal fossils from at least two beds within an interval of about 3 m; about 9 - 6 Ma based on biochronology, mostly involving comparisons with the Siwaliks (Chaimanee et al. 2006)
Lithology and environment
Primary lithology:"cross stratification",gray sandstone
Secondary lithology: claystone
Lithology description: "grey organic-rich sand and gravel, with some clay lenses intercalated" (Chaimanee et al. 2006)
Environment:fluvial indet.
Geology comments: "Intense cross-bedding indicates fluviatile regime" (Chaimanee et al. 2006)
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Collection methods and comments
Collection methods:salvage,selective quarrying,field collection
Reason for describing collection:taxonomic analysis
Collection method comments: material recovered from a commercial sand pit over five years (Chaimanee et al. 2006)
Metadata
Also known as:Khorat
Database number:67172
Authorizer:J. Alroy Enterer:J. Alroy
Modifier:J. Alroy Research group:vertebrate
Created:2006-11-11 20:57:21 Last modified:2007-05-14 21:26:33
Access level:the public Released:2006-11-11 20:57:21
Creative Commons license:CC BY
Reference information

Primary reference:
24291. Y. Chaimanee, V. Suteethorn, P. Jintasakul, C. Vidthayanon, B. Marandat and J.-J. Jaeger. 2004. A new orang-utan relative from the Late Miocene of Thailand. Nature 427:439-441 [J. Alroy/J. Alroy]

Secondary references:

19162 Y. Chaimanee, C. Yamee, P. Tian, K. Khaowiset, B. Marandat, P. Tafforeau, C. Nemoz and J.-J. Jaeger. 2006. Khoratpithecus piriyai, a Late Miocene hominoid of Thailand. American Journal of Physical Anthropology 131:311-323 [J. Alroy/J. Alroy]