The Andaikhudag Formation, in older literature referred to as Unduruh Formation or Ondorukhaa Formation, is an Early Cretaceous (Hauterivian to Barremian) geologic formation in Mongolia.[1] Dinosaur remains diagnostic to the genus level are among the fossils that have been recovered from the formation.[2]
| Andaikhudag Formation | |
|---|---|
| Stratigraphic range: Hauterivian-Barremian ~ | |
| Type | Geological formation |
| Lithology | |
| Primary | Shale |
| Other | Sandstone |
| Location | |
| Coordinates | 46°00′N 99°36′E / 46.0°N 99.6°E |
| Approximate paleocoordinates | 47°12′N 100°18′E / 47.2°N 100.3°E |
| Region | Bayankhongor Province |
| Country |  Mongolia |
  Andaikhudag Formation (Mongolia) | |
Fossil content
editThe following fossils have been reported from the lacustrine shales and secondary sandstones of the formation:[1]
- Birds
- Ambiortus dementjevi[3] - "Vertebrae and forelimb"[4]
- Holbotia ponomarenkoi[5]
- Insects
See also
editReferences
edit- ^ a b Andaikhudag Formation in the Paleobiology Database
- ^ Weishampel et al., 2004, pp.517-607
- ^ Kurochkin, 2000
- ^ "Table 11.1," in Weishampel et al., 2004, p.214
- ^ Zelenkov & Averianov, 2015
- ^ Rasnitsyn, 1991
- ^ Rasnitsyn, 1993
- ^ Kopylov, 2009
- ^ Blagoderov, 2000
- ^ Kalugina, 1993
- ^ a b Ponomarenko, 1997
- ^ Sinitshenkova, 1987
Bibliography
edit- Zelenkov, Nikita V.; Averianov, Alexander O. (2015), "A historical specimen of enantiornithine bird from the Early Cretaceous of Mongolia representing a new taxon with a specialized neck morphology", Journal of Systematic Palaeontology, 14 (4): 319–338, doi:10.1080/14772019.2015.1051146
- Kopylov, D.S (2009), "A new subfamily of Ichneumonids from the Lower Cretaceous of Transbaikalia and Mongolia (Insecta: Hymenoptera: Ichneumonidae)", Paleontological Journal, 43 (1): 83–93, Bibcode:2009PalJ...43...83K, doi:10.1134/S0031030109010092
- Weishampel, David B.; Dodson, Peter; Osmólska, Halszka (2004), The Dinosauria, 2nd edition, Berkeley: University of California Press, pp. 1–880, ISBN 0-520-24209-2, retrieved 2019-02-21
- Blagoderov, V.A (2000), "New fungus gnats (Diptera: Mycetophilidae) from the Cretaceous and Paleogene of Asia", Paleontological Journal, 34: S355–S359
- Kurochkin, E.N (2000), Mesozoic birds of Mongolia and the former USSR in M. J. Benton, M. A. Shishkin, D. M. Unwin, & E N. Kurichkin (eds.), The Age of Dinosaurs in Russia and Mongolia, pp. 533–559
- Ponomarenko, A.G (1997), "New beetles of the family Cupedidae from the Mesozoic of Mongolia - Ommatini, Mesocupedini, Priacmini", Paleontological Journal, 31: 389–399
- Kalugina, N.S (1993), Khaoboridy i Komary-zvontsy iz Mezozoya vostochnogo Zabaykal'ya (Diptera: Chaoboridae, Chironomidae). in, A. G. Ponomarenko (ed.), Mezozoyskie Nasekomye i Ostrakody Azii, pp. 117–139
- Rasnitsyn, A.P (1993), Novye taksony sepulek (Vespida: Sepulcidae) in, A. G. Ponomarenko (ed.) Mezozoyskie Nasekomye i Ostrakody Azii, pp. 80–99
- Rasnitsyn, A.P (1991), "Early Cretaceous evanimorphous hymenopteran families Stigmaphronidae and Cretevaniidae and the subfamily Kotujellitinae (Gasteruptiidae)", Paleontological Journal, 25: 172–179
- Sinitshenkova, N.D (1987), "Istopicheskoe razvitie vesiyanok", Akademiya Nauk SSSR, Trudy Paleontologicheskogo Instituta, 221: 1–142