Thamingyauk Kyitchaung (Eocene of Myanmar)

Also known as Tmk

Where: Myanmar (21.8° N, 94.9° E: paleocoordinates 13.1° N, 93.2° E)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Pondaung Formation, Bartonian (41.3 - 38.0 Ma)

• The whole sequence of units was originally defined as the ‘Pondaung Sandstones’ by Cotter (1914), but the horizon yielding Eocene vertebrate fossils is now known as the ‘Upper Member’ of the Pondaung Formation (see Maung et al. 2005). The most recent age for this unit is ~39–38 Ma and so it can be regarded as middle Bartonian (see Tsubamoto et al. 2011).

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; lithology not reported

Size class: macrofossils

Collection methods: collection is in the National Museum of Myanmar

Primary reference: S. Peigné, M. Morlo, Y. Chaimanee, S. Ducrocq, S. T. Tun and J.-J. Jaeger. 2007. New discoveries of hyaenodontids (Creodonta, Mammalia) from the Pondaung Formation, middle Eocene, Myanmar—paleobiogeographic implications. Geodiversitas 29(3):441-458 [T. Tsubamoto/T. Tsubamoto/J. Alroy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 78057: authorized by John Alroy, entered by John Alroy on 25.01.2008, edited by K. Christopher Beard, Patricia Holroyd and Bethany Allen

Creative Commons license: CC BY (attribution)

Taxonomic list

Polypodiopsida
  -
"Acrocarpoxylon ungeri" = Acrocarpus ungeri3
"Acrocarpoxylon ungeri" = Acrocarpus ungeri3 Gottwald 1994
MNHN.F.40119
Angiospermae
 Fabales - Fabaceae
Bauhinium palaeomalabaricum3 Prakash and Prasad 1983 legume
MNHN.F.40120
Cynometroxylon holdenii3 Gupta 1935 legume
MNHN.F.40117, MNHN.F.40118
 Malvales - Malvaceae
Bombacoxylon pondaungense n. sp.3 Licht et al. 2014 mallow
MNHN.F.40112.L1/3, L2/3 & L3/3 (holotype), MNHN.F.40113, MNHN.F.40114 and MNHN.F.40116
 Malvales - Dipterocarpaceae
Shoreoxylon deomaliense3 Prakash and Awasthi 1969
MNHN.F.40111
Shoreoxylon panganense3 Licht et al. 2014
MNHN.F.40115
Dicotyledoneae
 Myrtales - Combretaceae
Terminalioxylon coriaceum3 Prakash and Awasthi 1969
MNHN.F.40110
Reptilia
 Squamata -
Barbaturex morrisoni2 Head et al. 2013 squamates
Mammalia
 Creodonta - Hyaenodontidae
Hyaenodontidae indet. Leidy 1869 creodont
said to be a new species
 Primates - Afrotarsiidae
Afrasia djijidae1 Chaimanee et al. 2012 monkey