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Biandanshan, Chaohu Co., Hefei, Anhui, China

FormationBiandanshan
Age:251 - 247 Ma
Early/Lower Triassic
IntervalSpathian
Lithologylimestone, "limestone"/mudstone, claystone
Number of Collections5
Number of Occurrences17

Recorded Sample Locations

LocationRegionStratigraphic Name
Majiashan SectionChaohu Co., Hefei, Anhui, ChinaBiandanshan

Associated Units

Stratigraphic NameAgeLithologyOccurrence Records
Caoxian254 - 252 Ma
Permian
mudstone, siltstone, claystone21
Dalong252 - 251 Ma
Phanerozoic
mudstone, "shale", sandstone, mudstone/marl, "limestone", chert, chert/mudstone, mudstone/chert, claystone, mudstone/claystone, "shale"/lime mudstone, "siliciclastic", lime mudstone, lime mudstone/"shale", "limestone"/sandstone, framestone, chalk1953
Helongshan251 - 247 Ma
Early/Lower Triassic
mudstone, lime mudstone, marl, "limestone", claystone, "shale"58
Yinkeng251 - 247 Ma
Early/Lower Triassic
limestone, mudstone/"shale", siltstone, "limestone"/mudstone, mudstone/marl, lime mudstone, mudstone, "shale", "siliciclastic", claystone, sandstone/"limestone", sandstone, marl/mudstone199

Recorded Fossils

Accepted NameHierarchyAge
Promyalina putiatinensis
species
7Animalia : Mollusca : Bivalvia : Myalinida : Myalinidae : Promyalina : Promyalina putiatinensis251.3 - 247.2 Ma
Early/Lower Triassic
Claraia sp.
genus
6Animalia : Mollusca : Bivalvia : Pectinida : Pterinopectinidae : Claraia251.3 - 247.2 Ma
Early/Lower Triassic
Aspenites chaoxianensis
species
7Animalia : Mollusca : Cephalopoda : Ammonoidea : Aspenitidae : Aspenites : Aspenites chaoxianensis251.3 - 247.2 Ma
Early/Lower Triassic
Columbites sp.
genus
6Animalia : Mollusca : Cephalopoda : Ammonoidea : Columbitidae : Columbites251.3 - 247.2 Ma
Early/Lower Triassic
Subcolumbites sp.
genus
6Animalia : Mollusca : Cephalopoda : Ammonoidea : Columbitidae : Subcolumbites251.3 - 247.2 Ma
Early/Lower Triassic
Subcolumbites chaohuensis
species
7Animalia : Mollusca : Cephalopoda : Ammonoidea : Columbitidae : Subcolumbites : Subcolumbites chaohuensis251.3 - 247.2 Ma
Early/Lower Triassic
Subcolumbites chaoxianensis
species
7Animalia : Mollusca : Cephalopoda : Ammonoidea : Columbitidae : Subcolumbites : Subcolumbites chaoxianensis251.3 - 247.2 Ma
Early/Lower Triassic
Subcolumbites perrinismithi
species
7Animalia : Mollusca : Cephalopoda : Ammonoidea : Columbitidae : Subcolumbites : Subcolumbites perrinismithi251.3 - 247.2 Ma
Early/Lower Triassic
Arnautoceltites subglobosus
species
7Animalia : Mollusca : Cephalopoda : Ammonoidea : Melagathiceratidae : Arnautoceltites : Arnautoceltites subglobosus251.3 - 247.2 Ma
Early/Lower Triassic
Juvenites sp.
genus
6Animalia : Mollusca : Cephalopoda : Ammonoidea : Melagathiceratidae : Juvenites251.3 - 247.2 Ma
Early/Lower Triassic
Nordophiceras chaoxianense
species
7Animalia : Mollusca : Cephalopoda : Ammonoidea : Prionitidae : Nordophiceras : Nordophiceras chaoxianense251.3 - 247.2 Ma
Early/Lower Triassic
Sibirites crassicostatus
species
7Animalia : Mollusca : Cephalopoda : Ammonoidea : Sibiritidae : Sibirites : Sibirites crassicostatus251.3 - 247.2 Ma
Early/Lower Triassic
Sibirites eichwaldi
species
7Animalia : Mollusca : Cephalopoda : Ammonoidea : Sibiritidae : Sibirites : Sibirites eichwaldi251.3 - 247.2 Ma
Early/Lower Triassic
Tirolites jiangsuensis
species
7Animalia : Mollusca : Cephalopoda : Ammonoidea : Tirolites : Tirolites jiangsuensis251.3 - 247.2 Ma
Early/Lower Triassic
Tirolites latiumbilicatus
species
7Animalia : Mollusca : Cephalopoda : Ammonoidea : Tirolites : Tirolites latiumbilicatus251.3 - 247.2 Ma
Early/Lower Triassic

References

Guo P. X. (1982) On the occurrence of late Lower Triassic ammonoids from Anhui and Jiangsu, Acta Palaeontologica Sinica 21, 560-567
Yang Z. Y., Yin H. F., et al (1987) , Permian-Triassic Boundary Stratigraphy and Fauna of South China, 1-379
Data courtesy of: PBDB: The Paleobiology Database, Creative Commons CC-BY licenced. , GBIF: the Global Biodiversity Information Facility, various licences, iDigBio, various licences, and EOL: The Encyclopedia of Life (Open Data Public Domain). Because fossils are made of minerals too!
 
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