HOME

TheInfoList



OR:

The Yanjiahe Formation is an
Ediacaran The Ediacaran ( ) is a geological period of the Neoproterozoic geologic era, Era that spans 96 million years from the end of the Cryogenian Period at 635 Million years ago, Mya to the beginning of the Cambrian Period at 538.8 Mya. It is the last ...
to
Cambrian The Cambrian ( ) is the first geological period of the Paleozoic Era, and the Phanerozoic Eon. The Cambrian lasted 51.95 million years from the end of the preceding Ediacaran period 538.8 Ma (million years ago) to the beginning of the Ordov ...
fossiliferous
geologic formation A geological formation, or simply formation, is a body of rock having a consistent set of physical characteristics ( lithology) that distinguishes it from adjacent bodies of rock, and which occupies a particular position in the layers of rock exp ...
found in
South China South China ( zh, s=, p=Huá'nán, j=jyut6 naam4) is a geographical and cultural region that covers the southernmost part of China. Its precise meaning varies with context. A notable feature of South China in comparison to the rest of China is ...
.Dong et al., 2009Yanjiahe Formation
at
Fossilworks Fossilworks was 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 cr ...
.org


Fossil content

Among others, the following fossils were found in the formation: * '' Aldanella attleborensis''Guo et al., 2009 * '' Anabarites trisulcatus'' * '' Archaeophycus yunnanensis''Dong et al., 2009 * '' Beretella spinosa''Wang et al., 2024 * '' Comasphaeridium annulare'' * '' Conotheca subcurvata'' * '' Emeiconus antiqua'' * '' Heliosphaeridium ampliatum'' * ? '' Konglingiphyton sp.'' * '' Lapworthella sp.'' * '' Megathrix longus'' * '' Micrhystridium regulare'' * '' Protoconites minor'' * '' Protohertzina sp.'' * '' Purella antiqua'' * '' Vendotaenia sp.'' * '' Yanjiahella biscarpa''Topper et al., 2019 * '' Yuknessia sp.''


References


Bibliography

* * * * {{Cite report , url=https://elifesciences.org/reviewed-preprints/94709v1 , title=Early evolution of the ecdysozoan body plan , last1=Wang , first1=Deng , last2=Qiang , first2=Yaqin , date=2024-02-19 , doi=10.7554/elife.94709.1 , last3=Guo , first3=Junfeng , last4=Vannier , first4=Jean , last5=Song , first5=Zuchen , last6=Peng , first6=Jiaxin , last7=Zhang , first7=Boyao , last8=Sun , first8=Jie , last9=Yu , first9=Yilun, doi-access=free


Further reading

* J. Guo, Y. Li, and G. Li. 2014. Small shelly fossils from the early Cambrian Yanjiahe Formation, Yichang, Hubei, China. Gondwana Research 25:999-1007 * P. Chen. 1984. Discovery of Lower Cambrian small shelly fossils from Jijiapo, Yichang, west Hubei and its significance. Professional Papers of Stratigraphy and Palaeontology 13:49-64 Geologic formations of China Cambrian System of Asia Cambrian China Fortunian Ediacaran Shale formations Dolomite formations Limestone formations Phosphorite formations Cambrian northern paleotemperate deposits Paleontology in Hubei