The Majiacun Formation is a
Santonian
The Santonian is an age in the geologic timescale or a chronostratigraphic stage. It is a subdivision of the Late Cretaceous Epoch or Upper Cretaceous Series. It spans the time between 86.3 ± 0.7 mya (million years ago) and 83.6 ± 0.7 mya. ...
to
Coniacian
The Coniacian is an age or stage in the geologic timescale. It is a subdivision of the Late Cretaceous Epoch or Upper Cretaceous Series and spans the time between 89.8 ± 1 Ma and 86.3 ± 0.7 Ma (million years ago). The Coniacian is preceded b ...
geologic
formation
Formation may refer to:
Linguistics
* Back-formation, the process of creating a new lexeme by removing or affixes
* Word formation, the creation of a new word by adding affixes
Mathematics and science
* Cave formation or speleothem, a secondary ...
in China.
[Majiacun Formation]
at Fossilworks
Fossilworks is a portal which provides query, download, and analysis tools to facilitate access to the Paleobiology Database, a large relational database assembled by hundreds of paleontologists from around the world.
History
Fossilworks was cre ...
.org Dinosaur
Dinosaurs are a diverse group of reptiles of the clade Dinosauria. They first appeared during the Triassic period, between 243 and 233.23 million years ago (mya), although the exact origin and timing of the evolution of dinosaurs is t ...
remains are among the fossils that have been recovered from the formation.
Paleofauna
* ''
Bactrosaurus''
(remains originally known as ''
Bakesaurus
''Bactrosaurus'' (; meaning "Club lizard," "baktron" = club + ''sauros'' = lizard) is a genus of herbivorous hadrosauroid dinosaur that lived in Asia during the Late Cretaceous, about 96-85 million years ago. The position ''Bactrosaurus'' occupi ...
'')
* ''
Mosaiceratops azumai
''Mosaiceratops'' is a genus of ceratopsian, described by Zheng, Jin & Xu in 2015 and found in the Xiaguan Formation of Neixiang County. ''Mosaiceratops'' lived in the upper Cretaceous in what is now the Henan Province of China.
Although phyl ...
''
[Zheng et al., 2015]
* ''
Xixiasaurus henanensis''
[Lü et al., 2010]
* ''
Xixianykus zhangi''
[Xu et al., 2010]
* ''
Yunxianosaurus hubeinensis''
[Li, Zhengqi. (2001). Distribution, burying and classification of dinosaur fossils in Upper Cretaceous strata at Meipu Town, Yunxian County of Hubei Province. ''Hubei Geology & Mineral Resources'', 15(4)(Total No 37): 25-31]
/ref>
* '' Zhanghenglong, Zhanghenglong yangchengensis''[Xing et al., 2014]
* Baryonychinae indet.? (possibly an indeterminate theropod due to no shared synapomorphies present)[Hone et al., 2010]
;Fossil eggs
* '' Dendroolithus sanlimiaoensis''[Zhou & Feng, 2002]
* '' Prismatoolithus gebiensis''[Liang et al., 2009]
* '' Ovaloolithus sp.''[
* '' Spheroolithus sp.''][Zhao, 1979]
* '' Nanyangosaurus zhugeii''[
* '' Youngoolithus xiaguanensis''][
;Ichnofossils
* '' Scoyenia sp.''][
]
See also
* List of dinosaur-bearing rock formations
This list of dinosaur-bearing rock formations is a list of geologic formations in which dinosaur fossils have been documented.
Containing body fossils
* List of stratigraphic units with dinosaur body fossils
** List of stratigraphic units with f ...
** List of stratigraphic units with few dinosaur genera
This list of stratigraphic units with few non-avian dinosaur genera includes Mesozoic stratigraphic units of formation rank or higher that have produced dinosaur body fossils
A fossil (from Classical Latin , ) is any preserved remains, i ...
References
Bibliography
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* {{cite LSA , last=Zhao , first=Z , year=1979 , title=Discovery of the dinosaurian eggs and footprint from Neixiang county, Henan province , journal=Vertebrata PalAsiatica The Institute of Vertebrate Paleontology and Paleoanthropology (IVPP; ) of China is a research institution and collections repository for fossils, including many dinosaur and pterosaur specimens (many from the Yixian Formation). As its name sugges ...
, volume=17 , pages=304–309
Geologic formations of China
Upper Cretaceous Series of Asia
Cretaceous China
Santonian Stage
Coniacian Stage
Mudstone formations
Sandstone formations
Fluvial deposits
Ichnofossiliferous formations
Ooliferous formations
Paleontology in Henan
Paleontology in Hubei