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Bayan Shireh Formation
Stratigraphic range: Albian-Santonian ~102–86 Ma
PreꞒ
Ꞓ
O
S
D
C
P
T
J
K
Pg
N
Type
Geological formation
Sub-units
Upper beds, lower beds
Underlies
Javkhlant Formation
Overlies
Baruunbayan Formation
Thickness
Up to 300 m (980 ft)
Lithology
Primary
Claystone, sandstone
Other
Conglomerate, mudstone
Location
Coordinates
44°18′N109°12′E / 44.3°N 109.2°E / 44.3; 109.2
Approximate paleocoordinates
46°30′N100°00′E / 46.5°N 100.0°E / 46.5; 100.0
Region
Gobi Desert
Country
Mongolia
Type section
Named for
Bayan Shireh
Named by
Vasiliev et al.
Year defined
1959
Fossil localities in Mongolia. From C to D, mainly Bayan Shireh locations
The Bayan Shireh Formation (also known as Baynshiree/Baynshire, Baynshirenskaya Svita or Baysheen Shireh) is a geological formation in Mongolia, that dates to the Cretaceous period. It was first described and established by Vasiliev et al. 1959.[1]
^Vasiliev, V. G.; Volkhonin, V. C.; Grishin, G. L.; Ivanov, A. Kh.; Marinov, I. A.; Mokshancev, K. B. (1959). Geological structure of the People's Republic of Mongolia (stratigraphy and tectonics). p. 492.
and 30 Related for: Bayan Shireh Formation information
period about 96 million to 89 million years ago in what is now the BayanShirehFormation of Mongolia. The genus is currently monotypic, only including the...
plesiosaur and hybodont shark remains (which are also known in the BayanShirehFormation) are indicatives of a river system with connections to the ocean...
Erketu represents one of the first sauropods described from the BayanShirehFormation. The elongated cervical vertebrae of Erketu indicates that it was...
herbivore that represents the third therizinosaur taxon from the BayanShirehFormation, although it is known from the lower part. The genus is monotypic...
recovered from the locality Tsagan-Teg (or "White Mountain") of the BayanShirehFormation in the southeastern Gobi Desert, Mongolia. It was formally described...
Dabasu Formation is Santonian in age, correlating the Upper BayanShirehFormation. Van Itterbeeck et al. 2005 suggested that the Iren Dabasu Formation is...
ankylosaurian dinosaur Bienosaurus lufengensis from the Lower Lufeng Formation of Yunnan, China". Acta Palaeontologica Polonica 64 Alifanov, V. R.; Saveliev...
and large guts for processing food. Segnosaurus is known from the BayanShirehFormation, where it lived alongside the fellow therizinosaurs Erlikosaurus...
Ankylosaurinae, a group of derived ankylosaurs. Talarurus is known from the BayanShirehFormation, being likely niche partitioned with Tsagantegia, as indicated by...
Though therizinosaurs are not known from the Javkhlant Formation, it overlies the BayanShirehFormation, where Segnosaurus, Erlikosaurus, and Enigmosaurus...
fossils, a skull and some post-cranial fragments, were found in the BayanShirehFormation of Mongolia in 1972, dating to around 96 million and 89 million...
in 1981 by a Soviet-Mongolian paleontological expedition in the BayanShirehFormation and formally described in the same year by Rinchen Barsbold; the...
lived in Asia during the Late Cretaceous period in what is now the BayanShirehFormation (Cenomanian-Santonian). It contains only the type species Gobihadros...
partial—and large—caenagnathid dentary (specimen MPC-D 107/17) from the BayanShirehFormation, discovered in 2008 by the Hayashibara Museum of Natural Sciences-Mongolian...
3458/5 an unnamed juvenile hadrosauroid dinosaur specimen from the BayanShirehFormation of Baishan Tsav, Mongolia. The name "Gadolosaurus" was first used...
based on a fragmentary skull collected from the Upper Cretaceous BayanShirehFormation (Cenomanian to Santonian) of Mongolia and originally believed to...
relationships with Tugriken Shireh. Based on strata and rock facies (such as sandstones and caliche) of the formation and coeval units (Bayan Mandahu) it is currently...
Cretaceous (Cenomanian-Maastrichtian) period in what is now the BayanShireh and Nemegt formations of Mongolia, approximately 96 million to 70 million years...
carnivores of the region. It represents the first known mammal from the BayanShirehFormation. The holotype was first discovered and collected in 2002 during...
of stem-Carretochelyids are also known from the Cenomanian aged BayanShirehFormation, Mongolia, which were originally assigned to "Anosteira" shuwalovi...
Some of the first dendroolithid eggs were found on the BayanShireh and Nanchao formations. Their relationships were confusing and obscure on the early...
recovered from named geologic formations (e.g. the Morrison Formation or the Hell Creek Formation). When this is not the case, a city or landmark near the...
recovered from named geologic formations (e.g. the Morrison Formation or the Hell Creek Formation). When this is not the case, a city or landmark near the...
skull of a young individual. It was found at the Tugriken Shireh locality of the Djadochta Formation during the context of the Mongolian-Japanese Palaeontological...
recovered from named geologic formations (e.g. the Morrison Formation or the Hell Creek Formation). When this is not the case, a city or landmark near the...
Shireh), P. hellenikorhinus is found in the aeolian-fluvial sediments. As the latter type of sediments is also found in the Bayan Mandahu Formation,...
(respectively) of the BayanShirehFormation and thus, they are older than the remains of Adasaurus from the younger Nemegt Formation. They represent a different...
which the same formation is exposed. Such sites may have separate entries if they are considered to be more notable than the formation as a whole. In...
Global Information
Mongolia