An azhdarchoid pterosaur humerus from the latest Jurassic (Phu Kradung Formation) of Phu Noi, north-eastern Thailand.

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Eric Buffetaut
Varavudh Suteethorn
Suravech Suteethorn
Uthumporn = Deesri
Haiyan Tong


A pterosaur humerus from the Phu Kradung Formation at Phu Noi (Kalasin Province, north-eastern Thailand) is described and referred to an azhdarchoid, probably an azhdarchid. The Phu Noi locality is in the lower part of the Phu Kradung Formation and therefore probably latest Jurassic in age. This makes the Phu Noi pterosaur one of the oldest known azhdarchoids.

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Aires, A.S.S., Kellner, A.W.A., Müller, R.T., Da Silva, L.R., Pacheco, C.P. and Dias-Da-Silva, S. 2014. New postcranial elements of the Thalassodrominae (Pterodactyloidea, Tapejaridae) from the Romualdo Formation (Aptian-Albian), Santana Group, Araripe basin, Brazil. Palaeontology 57, 343–355.

Bennett, S.C. 2001. The osteology and functional morphology of the Late Cretaceous pterosaur Pteranodon. Part I. General description of osteology. Palaeontographica Abteilung A 260, 1-112.

Bennett, S.C. 2003. Morphological evolution of the pectoral girdle of pterosaurs : myology and function. In : E. Buffetaut and J.M. Mazin (Eds), Evolution and palaeobiology of pterosaurs. Geological Society London Special Publication 217, 191-215.

Buffetaut, E. 1995. The importance of « Lagerstätten » for our understanding of the evolutionary history of certain groups of organisms : the case of pterosaurs. In : II International Symposium on Lithographic Limestones. Extended Abstracts. Madrid : Ediciones de la Universidad Autonoma de Madrid, 49-52.

Buffetaut, E.,Ösi, A. and Prondvai, E. 2011. The pterosaurian remains from the Grünbach Formation (Campanian, Gosau Group) of Austria: a reappraisal of Ornithocheirus buenzeli’. Geological Magazine 148, 334–339.

Buffetaut, E., Suteethorn, V., Tong, H., Cuny, G. & Cavin, L. 2003. A pterodactyloid tooth from the Sao Khua Formation (Early Cretaceous) of Thailand. In: Ist International Conference on Palaeontology of Southeast Asia, Mahasarakham University Journal 23, 92-98.

Buffetaut, E., Suteethorn, S., Suteethorn, V., Deesri, U. and Tong, H. 2014. Preliminary note on a small ornithopod dinosaur from the Phu Kradung Formation (terminal Jurassic – basal Cretaceous) of Phu Noi, north-eastern Thailand. Journal of Science and Technology Mahasarakham University 33, 344-347.

Chanthasit, P. 2011. New theropod remains from the Phu Kradung Formation of Kalasin Province and a review of Late Jurassic theropod record in Thailand. In:World Conference on Paleontology and Stratigraphy. Nakhon Rachasima: Nakhon Rachasima Rajabhat University, 34.

Costa, F.R. and Kellner, A.W.A. 2009. On two pterosaur humeri from the Tendaguru beds (Upper Jurassic, Tanzania). Anais da Academia Brasileira de Ciências 81, 813-818.

Cuny, G., Liard, R., Deesri, U., Liard, T., Khamha, S. and Suteethorn, V. 2014. Shark faunas from the Late Jurassic- Early Cretaceous of northern Thailand. Paläontologische Zeitschrift 88, 309-328.

Deesri, U., Lauprasert, K., Suteethorn, V., Wongko, K. and Cavin, L. 2014. A new species of the ginglymodian fi sh Isanichthys from the Late Jurassic Phu Kradung Formation, northeastern Thailand. Acta Palaeontologica Polonica 59, 313-331.

Dyke, G.J., Benton, M.J., Posmosanu, E. and Naish, D. 2011. Early Cretaceous (Berriasian) birds and pterosaurs from the Cornet bauxite mine, Romania. Palaeontology 54, 79-95.

Eck, K., Elgin, R.A. and Frey, E. 2011. On the osteology of Tapejara wellnhoferi KELLNER 1989 and the fi rst occurrence of a multiple specimen assemblage from the Santana Formation, Araripe Basin, NEBrazil. Swiss Journal of Palaeontology 130, 277-296.

Lü, J., Unwin, D.M., Jin, X., Liu, Y. and Ji, Q. 2010. Evidence for modular evolution in a long-tailed pterosaur with a pterodactyloid skull. Proceedings of the Royal Society B 277, 383–389.

Racey, A. and Goodall, J.G.S. 2009. Palynology and stratigraphy of the Mesozoic Khorat Group red bed sequences from Thailand. In : E. Buffetaut, G. Cuny, J. Le Loeuff, and V. Suteethorn (Eds.), Late Palaeozoic and Mesozoic Ecosystems in SE Asia. Geological Society London Special Publication 315, 69-83.

Tong, H., Naksri, W., Buffetaut, E., Suteethorn, V. Suteethorn, S., Deesri, U., Si la, S., Ch anthasit, P. and Claude, J. 2015. A new primitive eucryptodiran turtle from the Upper Jurassic Phu Kradung Formation of the Khorat Plateau, NE Thailand. Geological Magazine 152, 166-175.

Unwin, 2003. On the phylogeny and evolutionary history of pterosaurs. In : E. Buffetaut and J.M. Mazin (Eds), Evolution and palaeobiology of pterosaurs. Geological Society London Special Publication 217, 139-190.

Wang, X., Kellner, A.W.A., Jiang, S., Cheng, X., Meng, X. and Rodrigues, T. 2010. New long-tailed pterosaurs (Wukongopteridae) from western Liaoning, China. Anais da Academia Brasileira de Ciências 82, 1045- 1062.

Wellnhofer, P. 1978. Pterosauria. Handbuch der Paläoherpetologie 19, 1-82. Wellnhofer, P. 1985. Neue Pterosaurier aus der SantanaFormation (Apt) der Chapada do Araripe, Brasilien. Palaeontographica Abteilung A 187, 105-182.

Wellnhofer, P. 1991. Weitere Pterosaurierfunde aus der Santana-Formation (Apt) der Chapada do Araripe, Brasilien. Palaeontographica Abteilung A 215, 43- 101.

Witton, M.P. 2013. Pterosaurs. Princeton University Press, Princeton and Oxford, pp. 291. Young, C.C. 1973. Pterosaurs from Wuerho. Memoirs of the Institute of Vertebrate Paleontology and Paleoanthropology Academia Sinica 11, 18-35.