PBDB Collection

Wai Lek pit: Late/Upper Eocene, Thailand

List of taxa

Where & when

Geology

Taphonomy & methods

Metadata & references

Taxonomic list

unclassified

	Hoplophoenus sp.	Ducrocq et al. 2021
Mammalia - Perissodactyla - Rhinocerotidae

	? Guixia cf. simplex	Antoine et al. 2003
	TF 2657 and 2658

	Guixia simplex	Ducrocq et al. 2021
Mammalia - Perissodactyla

	Siamolophus krabiense n. gen., n. sp. Ducrocq et al. 2006	Ducrocq et al. 2006
Mammalia

	Egatochoerus jaegeri Ducrocq 1994	Ducrocq 1994
	DMR TF 2672, 2674, 2826 and 2827

	Krabitherium waileki Métais et al. 2007	Métais et al. 2007
Mammalia - Tragulidae

	Krabimeryx primitivus n. gen., n. sp. Metais et al. 2001	Metais et al. 2001

	Archaeotragulus krabiensis n. gen., n. sp. Metais et al. 2001	Metais et al. 2001
Mammalia - Anthracotheriidae

	Anthracokeryx thailandicus n. sp. Ducrocq 1999	Ducrocq 1999
	recombined as Geniokeryx thailandicus
	DMR TF 2638 - type

	Geniokeryx thailandicus (Ducrocq 1999)	Ducrocq et al. 2021

	Anthracotherium chaimanei n. sp. Ducrocq 1999	Ducrocq 1999
	DMR TF 2636 - type
Mammalia

	Siamotherium krabiense Suteethorn et al. 1988	Ducrocq et al. 1995
Mammalia - Entelodontidae

	Entelodon aff. gobiensis (Trofimov 1952)	Ducrocq et al. 2021
	recombined as Ergilobia gobiensis
Mammalia

	Miacis thailandicus	Ducrocq et al. 1992
Mammalia - Carnivora - Nimravidae

	Hoplophoneus sp. Cope 1874	Peigne et al. 2000

	Nimravus cf. intermedius Filhol 1872	Peigne et al. 2000
Mammalia - Primates - Ekgmowechashalidae

	Amphipithecidae indet. (Godinot 1994)	Ducrocq et al. 2006	1 specimen
	TF 3475; originally entered as "Ampithecidae indet."
	= Gatanthropus sp. Ni et al. 2016	Ni et al. 2016
Mammalia - Primates - Amphipithecidae

	Amphipithecidae indet. (Godinot 1994)	Ducrocq et al. 2021

	Siamopithecus eocaenus Chaimanee et al. 1997	Chaimanee et al. 1997
	DMR TF 3634
Mammalia - Primates - Tarsiidae

	Tarsiidae indet. Gray 1825	Ducrocq et al. 2006	1 specimen
	TF 3476; "omomyids cannot be ruled out"
Mammalia - Dermoptera

	Dermotherium major n. gen., n. sp. Ducrocq et al. 1992	Ducrocq et al. 1992	1 specimen
	DMR TF 2580 - holotype
Mammalia - Rodentia - Chapattimyidae

	Baluchimyinae informal indet. 1 Flynn et al. 1986	Ducrocq et al. 2021

	Baluchimyinae informal indet. 2 Flynn et al. 1986	Ducrocq et al. 2021

	Baluchimys krabiense Marivaux et al. 2000	Ducrocq et al. 2021
Mammalia - Chiroptera - Pteropodidae

	Pteropodidae indet. Gray 1821	Ducrocq et al. 2021
Mammalia - Insectivora

	Insectivora indet. Bowdich 1821	Ducrocq et al. 2021
Reptilia - Colubridae

	Colubridae indet. Oppel 1811		6 specimens
Reptilia - Boidae

	Boidae indet. Gray 1825	Ducrocq et al. 1995
Reptilia

	Krabisuchus siamogallicus Martin and Lauprasert 2010	Martin and Lauprasert 2010
	Kr-C specimens

	Alligatoridae indet. (Gray 1844)	Ducrocq et al. 2021

	Allognathosuchus sp. Mook 1921	Ducrocq et al. 1995
Reptilia - Crocodylidae

	Crocodylidae indet. Cuvier 1807	Ducrocq et al. 2021
Reptilia

	Maomingosuchus sp. Shan et al. 2017	Martin et al. 2019
	PRC-1121-1123

	cf. Eosuchus lerichei Dollo 1907	Ducrocq et al. 1995
Reptilia - Testudines

	Chelonia indet. (Latreille 1800)	Ducrocq et al. 2021
	synonym of Testudines
Reptilia - Testudines - Emydidae

	? Emydidae indet. Rafinesque 1815	Ducrocq et al. 1995
see common names

Geography

Country:	Thailand
Coordinates:	8.0° North, 99.1° East (view map)
Paleocoordinates:	6.0° North, 103.0° East
Basis of coordinate:	stated in text
Geographic resolution:	outcrop

Time

Period:	Paleogene	Epoch:	Eocene
Stage:	Priabonian	10 m.y. bin:	Cenozoic 3
Key time interval:	Late/Upper Eocene
Age range of interval:	37.71000 - 33.90000 m.y. ago

Stratigraphy

Formation:	Krabi Basin B2
Stratigraphic resolution:	group of beds
Stratigraphy comments: from the "Main lignite seam (Formation B2)" which has "yielded almost all mammal remains known from Krabi" (Ducrocq et al. 2006)

Lithology and environment

Primary lithology:	lignite
Environment:	terrestrial indet.

Taphonomy

Modes of preservation:	body
Size of fossils:	macrofossils,mesofossils
Preservation of anatomical detail:	good
Disassociated major elements:	all

Collection methods and comments

Collection excludes:	some genera
Collection methods:	selective quarrying
Reason for describing collection:	taxonomic analysis
Taxonomic list comments:a large number of additional papers on mammals have not been entered yet

Metadata

Also known as:	Krabi Basin; Ban Wai lek
Database number:	49078
Authorizer:	J. Head, M. Uhen, L. van den Hoek Ostende, P. Coster, J. Alroy, P. Mannion, P. Holroyd	Enterer:	J. Head, P. Coster, P. Mannion, P. Holroyd, L. van den Hoek Ostende, M. Uhen, G. Varnham, J. Alroy
Modifier:	P. Mannion	Research group:	vertebrate
Created:	2005-04-07 16:13:39	Last modified:	2013-04-19 10:19:53
Access level:	the public	Released:	2005-04-07 16:13:39
Creative Commons license:	CC BY

Reference information

Primary reference:

13106.

J.-C. Rage, E. Buffetaut, H. Buffetaut-Tong, Y. Chaimanee, S. Ducrocq, J.-J. Jaeger, and V. Suteethorn. 1992. A colubrid snake in the late Eocene of Thailand: the oldest known Colubridae (Reptilia, Serpentes). Comptes Rendus de l’Académie des Sciences, Paris. Série 2 314:1085-1089 [J. Head/J. Head/M. Uhen]

Secondary references:

59765		P.-O. Antoine, S. Ducrocq, L. Marivaux, Y. Chaimanee, J.-Y. Crochet, J.-J. Jaeger, and J.-L. Welcomme. 2003. Early rhinocerotids (Mammalia: Perissodactyla) from South Asia and a review of the Holarctic Paleogene rhinocerotid record. Canadian Journal of Earth Sciences 40:365-374 [P. Mannion/P. Mannion]
57783		Y. Chaimanee, V. Suteethorn, J.-J. Jaeger and S. Ducrocq. 1997. A new Late Eocene anthropoid primate from Thailand. Nature 385:429-431 [P. Mannion/P. Mannion]
57995		S. Ducrocq, E. Buffetaut, H. Buffetaut-Tong, R. Helmcke-Ingavat, J.J. Jaeger, Y. Jongkanjanasoontorn and V. Suteethorn. 1992. A lower Tertiary vertebrate fauna from Krabi (South Thailand). Neues Jahrbuch für Geologie und Paläontologie Abhandlungen 184(1):101-122 [P. Coster/P. Coster]
57784		S. Ducrocq. 1994. An Eocene peccary from Thailand and the biogeographical origins of the artiodactyl family Tayassuidae. Palaeontology 37(4):765-779 [P. Mannion/P. Mannion]
57994		S. Ducrocq, Y. Chaimanee, V. Suteethorn, and J.J. Jaeger. 1995. Mammalian faunas and the ages of the continental Tertiary fossiliferous localities from Thailand. Journal of Southeast Asian Earth Sciences 12(1):65-78 [P. Coster/P. Coster]
58462		S. Ducrocq. 1999. The Late Eocene Anthracotheriidae (Mammalia, Artiodactyla) from Thailand. Palaeontographica Abteilung A Band 252(4-6):93-140 [P. Mannion/P. Mannion]
29672		S. Ducrocq. 1999. Siamopithecus eocaenus, a late Eocene anthropoid primate from Thailand: its contribution to the evolution of anthropoids in Southeast Asia. Journal of Human Evolution 36(6):613-635 [J. Alroy/J. Alroy]
49108		S. Ducrocq, E. Buffetaut, H. Buffetaut-Tong, J.-J. Jaeger, Y. Jongkanjanasoontorn and V. Suteethorn. 1992. First fossil flying lemur: A dermoptera from the Late Eocene of Thailand. 35(2):373-380 [M. Uhen/M. Uhen/P. Mannion]
19600		S. Ducrocq, Y. Chaimanee, J.-J. Jaeger and G. Métais. 2006. A new ceratomorph (Perissodactyla, Mammalia) from the late Eocene of southeast Asia. Journal of Vertebrate Paleontology 26(4):1024-1027 [J. Alroy/J. Alroy]
26116		S. Ducrocq, Y. Chaimanee, and J.-J. Jaeger. 2006. New primates from the late Eocene of Thailand: a contribution to primate diversity in the Paleogene of Asia. Journal of Human Evolution 51:153-158 [P. Holroyd/P. Holroyd]
79863		S. Ducrocq, Y. Chaimanee, J.-J. Jaeger, C. Yamee, M. Rugbumrung, C. Grohé, and O. Chavasseau. 2021. New fossil remains from Bang Mark locality, Krabi Basin, southern Thailand. Journal of Vertebrate Paleontology e1988624 [P. Mannion/G. Varnham/G. Varnham]
46408		J. E. Martin and K. Lauprasert. 2010. A new primitive alligatorine from the Eocene of Thailand: relevance of Asiatic members to the radiation of the group. Zoological Journal of the Linnean Society 158:608-628 [P. Mannion/P. Mannion]
69680		J. E. Martin, K. Lauprasert, H. Tong, V. Suteethorn, and E. Buffetaut. 2019. An Eocene tomistomine from peninsular Thailand. Annales de Paléontologie 105(3):245-253 [P. Mannion/P. Mannion/P. Mannion]
18680		G. Metais, Y. Chaimanee, J.-J. Jaeger and S. Ducrocq. 2001. New remains of primitive ruminants from Thailand: evidence of the early evolution of the Ruminantia in Asia. Zoologica Scripta 30(4):231-248 [L. van den Hoek Ostende/L. van den Hoek Ostende]
26397		G. Métais, Y. Chaimanee, J.-J. Jaeger and S. Ducrocq. 2007. Eocene bunoselenodont Artiodactyla from southern Thailand and the early evolution of Ruminantia in South Asia. Naturwissenschaften 94(6):493-498 [J. Alroy/J. Alroy]
59456		X. Ni, Q. Li, L. Li and K. C. Beard. 2016. Oligocene primates from China reveal divergence between African and Asian primate evolution. Science 352(6286):673-677 [P. Mannion/P. Mannion]
2745		S. Peigne, Y. Chaimanee, J.-J. Jaeger, V. Suteethorn, and S. Ducrocq. 2000. Eocene nimravid carnivorans from Thailand. Journal of Vertebrate Paleontology 20(1):157-163 [J. Alroy/J. Alroy/M. Uhen]