Dzunbain Formation
Early Cretaceous geologic formation in Mongolia
Dzunbain Formation | |
---|---|
Stratigraphic range: Aptian–Albian PreꞒ Ꞓ O S D C P T J K Pg N | |
Type | Geological formation |
Sub-units |
|
Thickness | up to 60 metres (200 ft) at Chamrin-Us |
Lithology | |
Primary | Claystone and sandstone |
Location | |
Coordinates | 42°27′00″N 102°25′01″E / 42.45°N 102.417°E / 42.45; 102.417 |
Region | Erdene District, Dornogovi Province, Mongolia |
Country | Mongolia |
The Dzunbain Formation (also known as Dzunbayn Formation) is a geological formation in Mongolia, dating to the Early Cretaceous (Aptian-Albian).[1] The formation contains fossils of mammals, reptiles, turtles and dinosaurs. The Dzunbain Formation is equivalent to the Khuren Dukh Formation.[2]
Paleobiota of the Dzunbain Formation
Amphibians
Genus | Species | Location | Stratigraphic position | Material | Notes | Image |
---|---|---|---|---|---|---|
Eodiscoglossus[3] | E. sp.[3] | Khovboor |
Squamates
Genus | Species | Location | Stratigraphic position | Material | Notes | Image |
---|---|---|---|---|---|---|
Dorsetisaurus[4] | D. sp.[4] | Khovboor | ||||
Hoburogekko[5] | H. suchanovi[5] | Khovboor | "A partial skull."[5] | |||
Hodzhakulia[4] | H. sp.[4] | Khovboor | ||||
Iguania[4] | Indeterminate[4] | Khovboor | ||||
Lacertilia[4] | Indeterminate[4] | Khovboor | ||||
Paramacellodidae[4] | Indeterminate[4] | Khovboor | ||||
Priscagamidae[4] | Indeterminate[4] | Khovboor | ||||
Slavoia[4] | S. sp.[4] | Khovboor | ||||
Xantusiidae[4] | Indeterminate[4] | Khovboor | ||||
Xenosauridae[4] | Indeterminate[4] | Khovboor |
Mammals
Genus | Species | Location | Stratigraphic position | Material | Notes | Image |
---|---|---|---|---|---|---|
Arginbaatar[6] | A. dimitrievae[6] | Khovboor | ||||
Arguimus[7] | A. khosbajari[7] | Khovboor | ||||
Eobaatar[8] | E. magnus and E. minor[8] | Khovboor | "Lower jaw fragment (E. magnus)."[8] | |||
Gobiconodon[9] | G. borissiaki and G. hobuvensis[9] | Khovboor | "Both species known only from cranial remains."[9] | |||
Gobiotheriodon[10] | G. infinitus[10] | Khovboor | Previously known as "Gobiodon".[10] | |||
Heptoconodon | Indeterminate | Khovboor | ||||
Hovurlestes[11] | H. noyon[11] | Khovboor | ||||
Kielantherium[12] | K. gobiensis[12] | Khovboor | ||||
Monobaatar[8] | M. mimicus[8] | Khovboor | ||||
Prokennolestes[13] | P. minor, P. sp. and P. trofimovi[13] | Khovboor | ||||
Plagiaulacidae[8] | Indeterminate[8] | Khovboor |
Turtles
Genus | Species | Location | Stratigraphic position | Material | Notes | Image |
---|---|---|---|---|---|---|
Hangaiemys[14] | H. hoburensis[14] | Khovboor | ||||
Mongolemys[14] | M. sp.[14] | Khovboor |
Dinosaurs
Genus | Species | Location | Stratigraphic position | Material | Notes | Image |
---|---|---|---|---|---|---|
Mongolostegus[15] | M. exspectabilis[15] | Chamrin-Us | "Posterior dorsal and anterior caudal vertebrae as well as pelvic material."[15] | Previously known as Wuerhosaurus mongoliensis.[16] One of the last surviving stegosaurs.[15] | ||
Psittacosauridae[17] | Indeterminate[17] | Chamrin-Us | ||||
Psittacosaurus[18] | P. mongoliensis[18] | Khovboor | ||||
Sauropoda | Indeterminate | Chamrin-Us and Khovboor | ||||
Shamosaurus[2] | S. scutatus[2] | Chamrin-Us and Khovboor | "A complete skull, lower jaws and partial postcranial skeleton with armor. Also referred are a skull piece, lower jaw and two cervical halfrings."[19] | |||
Stegosauridae[15] | Indeterminate[15] | Chamrin-Us | One of the last surviving stegosaurs.[15] | |||
Troodontidae[20] | Indeterminate[20] | Chamrin-Us |
See also
References
- ^ Shuvalov V. F. (1974) O geologicheskom stroenii i vozraste mestonakhozhdenii Khobur i Khuren-Dukh [On the geology and age of the Khobur and Khuren-Dukh localities], Mesozoic and Cenozoic Faunas and Biostratigraphy of Mongolia; The Joint Soviet-Mongolian Paleontological Expedition, Transactions 1, 296-304
- ^ a b c T.A. Tumanova, (1983), "Pervyy ankilozavr iz nizhnego mela Mongolii", In: L.P. Tatarinov, R. Barsbold, E. Vorobyeva, B. Luvsandanzan, B.A. Trofimov, Yu. A. Reshetov, & M.A. Shishkin (eds.), Iskopayemyye reptilii mongolii. Trudy Sovmestnaya Sovetsko-Mongol'skaya Paleontologicheskaya Ekspeditsiya 24: 110-118
- ^ a b Shishkin M. A. (2000) Mesozoic amphibians from Mongolia and the Central Asiatic republics, The Age of Dinosaurs in Russia and Mongolia, 297-308
- ^ a b c d e f g h i j k l m n o p q r Alifanov V. R. (2000) The fossil record of Cretaceous lizards from Mongolia, The Age of Dinosaurs in Russia and Mongolia, 368-389
- ^ a b c Alifanov, V.R. (1989) The oldest gecko (Lacertilia, Gekkonidae) from the Lower Cretaceous of Mongolia. Paleontologicheskii Zhurnal 1989:124–126. [in Russian].
- ^ a b Trofimov (1980) Multituberculata and Symmetrodonta from the Lower Cretaceous deposits in Mongolia. Trans. (Dokl) USSR Acad Sci, Earth Sci Sect 251. p. 188-191.
- ^ a b D. Dashzeveg. (1979). Arguimus khosbajari gen. n, sp. n (Peramuridae, Eupantotheria) from the Lower Cretaceous of Mongolia. Acta Palaeontologica Polonica 24(2):199-204
- ^ a b c d e f g Kielan-Jaworowska et al. (1987), "Early Cretaceous multituberculates from Mongolia and a comparison with Late Jurassic form". Acta Palaeontologica Polonica 32, p. 3-47.
- ^ a b c Lopatin, Alexey; Averianov, Alexander (2015). "Gobiconodon (Mammalia) from the Early Cretaceous of Mongolia and Revision of Gobiconodontidae". Journal of Mammalian Evolution. 22 (1): 17–43. doi:10.1007/s10914-014-9267-4. ISSN 1064-7554.
- ^ a b c B. A. Trofimov. (1997). A new generic name Gobiotheriodon for a symmetrodont mammal Gobiodon Trofimov, 1980. Acta Palaeontologica Polonica 42(4):496
- ^ a b Lopatin, A. V.; Averianov, A. O. (2018). "A New Stem Placental Mammal from the Early Cretaceous of Mongolia". Doklady Biological Sciences. 478 (1): 8–11. doi:10.1134/s0012496618010027. ISSN 0012-4966.
- ^ a b D. Dashzeveg. (1975). New primitive therian from the early Cretaceous of Mongolia. Nature 256:402-403
- ^ a b Z. Kielan-Jaworowska and D. Dashzeveg. (1989). Eutherian mammals from the Early Cretaceous of Mongolia. Zoologica Scripta 18(2):347-355
- ^ a b c d V. B. Sukhanov. (2000). Mesozoic turtles of Middle and Central Asia. In M. J. Benton, M. A. Shishkin, D. M. Unwin, & E N. Kurichkin (eds.), The Age of Dinosaurs in Russia and Mongolia
- ^ a b c d e f g T. A. Tumanova & V. R. Alifanov (2018) First Record of Stegosaur (Ornithischia, Dinosauria) from the Aptian-Albian of Mongolia. Paleontological Journal 52(14) DOI: https://doi.org/10.1134/S0031030118140186 https://link.springer.com/article/10.1134/S0031030118140186
- ^ Ulansky, Roman. E., (2014). Evolution of the stegosaurs (Dinosauria; Ornithischia). Dinologia, 35 pp. [in Russian]. PDF.
- ^ a b Suslov Y. V., Barsbold R. (1983) Zakhoroneniye psittakozavrov v Khamryn-us (Vostochnaya Gobi, MNR), Trudy - Sovmestnaya Sovetsko-Mongol'skaya Paleontologicheskaya Ekspeditsiya 24, 118-120
- ^ a b Kalandadze N. N., Kurzanov S. M. (1974) Nizhnemelove mestonakhozhdeniya nazemnykh pozvonochnykh Mongolii [Lower Cretaceous terrestrial vertebrate localities of Mongolia], Mesozoic and Cenozoic Faunas and Biostratigraphy of Mongolia. The Joint Soviet-Mongolian Paleontological Expedition, Transactions 1, 288-295
- ^ Arbour, Victoria Megan, (2014). Systematics, evolution, and biogeography of the ankylosaurid dinosaurs. Ph.D thesis, University of Alberta
- ^ a b Barsbold R., Osmólska H., et al (1987) On a new troodontid (Dinosauria, Theropoda) from the Early Cretaceous of Mongolia, Acta Palaeontologica Polonica 32 1-2, 121-132