Phu Din Daeng: Late/Upper Barremian, Thailand
collected by Palaeontological Research and Education Centre (PRC), Mahasarakham University 2012
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Reptilia
- Testudines
- Adocidae
|
||||||||||
Adocidae indet.
Cope 1869
|
||||||||||
PRC77 (Fig. 7U–V), a costal; PRC82(Fig. 7W–X), a pygal and PRC78 (Fig. 7Y–Z), a peripheral 11. | ||||||||||
Protoshachemys sp.
Tong et al. 2019
|
||||||||||
PRC68 and PRC69 (Fig. 7M–N), nuchals;PRC70 (Fig. 7O–P) and PRC71, left peripheral 1, PRC72, rightperipheral 1; PRC73 (Fig. 7Q–R) and PRC74, pygals; PRC75, left epiplastron, PRC76 (Fig. 7S–T), right epiplastron and other shellelements. | ||||||||||
Protoshachemys rubra n. gen., n. sp.
Tong et al. 2019
|
||||||||||
Holotype: PRC81 (Fig. 7A–D), a nearly complete but disarticulated shell, including complete nuchal, one neural, suprapygal 1 (incomplete), suprapygal 2, pygal (lacking posterior portion), right costal 1, left costal 2, the distal portion of the left costal 3, right costal 4 (lacking proximal end), left costal 5 and distal end of the right costal 5, left costal 6 (lacking the proximal end), left and right costal 7 (the right one lacking the proximal end), right costal 8, left peripherals 1–2, 4–6 and 8–11, right peripherals 8 and 10–11; nearly complete left epiplastron and right hyoplastron, and incomplete right hypoplastron. All these elements were unearthed within one square metre and in all likelihood belong to the same individual. Referred material: PRC54, nuchal (Fig. 7E–F); PRC55, PRC56, PRC57, suprapygal 2; PRC58, pygal (Fig. 7K–L); PRC59, left costal 6 (Fig. 7I–J); PRC60, right costal 3 (Fig. 7G–H); PRC61, right peripheral 1; PRC62, left and right peripheral 2 of same individual; PRC67, right epiplastron; | ||||||||||
Reptilia
|
||||||||||
Neosuchia indet.
Clark 1988
|
||||||||||
Crocodilians are poorly represented at Phu Din Daeng and con-sist of a single mandibular element as well as isolated tooth crowns,the latter being the most abundant type of material recovered | ||||||||||
Reptilia
- Theropoda
|
||||||||||
Theropoda indet.
Marsh 1881
|
||||||||||
Apart from a large caudal vertebra lacking the neural spine,which may belong to a theropod, this group of dinosaurs is mainlyrepresented by isolated teeth | ||||||||||
Reptilia
- Spinosauridae
|
||||||||||
Spinosauridae indet.
Stromer 1915
|
||||||||||
Spinosaurid teeth are relatively common at Phu Din Daeng,but mostly poorly preserved | ||||||||||
Reptilia
- Pterosauria
|
||||||||||
Pterosauria indet.
Kaup 1834
|
||||||||||
A few long, slender and more or less tubular teeth (PRC146,Fig. 10C) apparently belong to pterosaurs, although their enamelis too poorly preserved to clearly show the distinguishing featuresof pterosaur teeth. | ||||||||||
Actinopteri
- Amiiformes
- Amiidae
|
||||||||||
? Vidalamiinae indet.
Grande and Bemis 1998
|
||||||||||
PRC94, right dentary; PRC95, anterior extremity of aright dentary; PRC96, piece of a semi-articulated specimen withunidentified bones, toothed scales and vertebral centra in con-nection; PRC97, piece of a semi-articulated specimen with scalesand fin rays; PRC98, accumulation of scales in articulation; PRC99,accumulation of bones, scales and fragments of fin rays. | ||||||||||
Actinopteri
- Ginglymodi
|
||||||||||
Ginglymodi indet.
Cope 1871
|
||||||||||
a large number of unnumbered thick ganoid scales. | ||||||||||
Actinopteri
- Pycnodontiformes
|
||||||||||
Pycnodontiformes indet.
Berg 1937
|
||||||||||
PRC84, fragment of a vomer | ||||||||||
Sinamiidae
|
||||||||||
cf. Siamamia sp.
Cavin et al. 2007
|
||||||||||
PRC92, dermopterotic; PRC93, basioccipital; PRC90,fragment of a left maxilla; PRC91, posterior extremity of a maxilla;PRC89, right premaxilla; PRC87, left dentary; PRC88, fragment of aright dentary with a coronoid; PRC85, anterior vertebral centrum; PRC86, posterior vertebral centrum. | ||||||||||
Chondrichthyes
- Hybodontiformes
- Hybodontidae
|
||||||||||
Heteroptychodus steinmanni
Yabe and Obata 1930
|
||||||||||
Three teeth with the root preserved (PRC34-PRC36)and three fragments of tooth crown | ||||||||||
see common names |
Geography
Country: | Thailand | State/province: | Changwat | County: | Amphoe |
Coordinates: | 16.9° North, 104.5° East (view map) | ||||
Paleocoordinates: | 15.7° North, 112.5° East | ||||
Basis of coordinate: | based on nearby landmark | ||||
Geographic resolution: | outcrop |
Time
Period: | Cretaceous | Epoch: | Early/Lower Cretaceous |
Stage: | Barremian | 10 m.y. bin: | Cretaceous 2 |
Key time interval: | Late/Upper Barremian | ||
Age range of interval: | 125.77000 - 121.40000 m.y. ago |
Stratigraphy
Formation: | Sao Khua | ||||
Stratigraphic resolution: | bed | ||||
Stratigraphy comments: Non-marine bivalves suggest the Sao Khua Formation is late Barremian in age (Tumpeesawan et al. 2010; Samathi et al. 2019) |
Lithology and environment
Primary lithology: | siltstone |
Includes fossils? | Y |
Lithology description: The fossiliferous deposits correspond to a thin layer of siltstone of a few centimetres thick, itself interbedded in layers of red mudstones, siltstones and sand-stones. Vertebrate fossils are relatively abundant, including sharks,bony fishes, crocodiles, turtles, pterosaurs and theropod dinosaurs;bivalves have also been collected | |
Environment: | terrestrial indet. |
Taphonomy
Modes of preservation: | body |
Degree of concentration: | dispersed |
Size of fossils: | macrofossils,mesofossils |
Preservation of anatomical detail: | good |
Articulated whole bodies: | none |
Disassociated major elements: | all |
Disassociated minor elements: | all |
Fragmentation: | frequent |
Temporal resolution: | snapshot |
Spatial resolution: | parautochthonous |
Collection methods and comments
Collection excludes: | some microfossils | ||
Collection methods: | surface (in situ),mechanical,sieve,field collection,survey of museum collection,observed (not collected) | ||
Reason for describing collection: | taxonomic analysis | ||
Collectors: | Palaeontological Research and Education Centre (PRC), Mahasarakham University | Collection dates: | since 2012 |
Collection method comments: The material was collected on the surface or by systematic excavations to extract apparently partially associated fish or turtle skeletons; and the sediments were screen-sieved.
Material stored at Palaeontological Research and Education Centre (PRC), Mahasarakham University |
Metadata
Database number: | 201767 | ||
Authorizer: | E. Vlachos | Enterer: | E. Vlachos |
Modifier: | G. Varnham | ||
Created: | 2019-05-28 07:33:14 | Last modified: | 2022-05-05 06:13:18 |
Access level: | the public | Released: | 2019-05-28 07:33:14 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
69051. | H. Tong, E. Buffetaut, V. Suteethorn, S. Suteethorn, G. Cuny, L. Cavin, U. Deesri, J. E. Martin, K. Wongko, W. Naksri, and J. Claude. 2019. Phu Din Daeng, a new Early Cretaceous vertebrate locality on the Khorat Plateau, NE Thailand. Annales de Paléontologie 105(3):223-237 [E. Vlachos/E. Vlachos/P. Mannion] |