near Rongxi: Telychian, China

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
Protopholidostrophia minor
Enidites sp.
Platycameroceras sp.
Crinoidea
Dazhucrinus sp. Mu and Wu 1974
Pterobranchia - Graptoloidea - Monograptidae
Monograptus guizhouensis
Monograptus biformatus
Monograptus shiqianensis
Monoclimacis chuchlensis
Monoclimacis operculum
Monoclimacis flexilis
Pterobranchia - Graptoloidea - Retiolitidae
Stomatograptus sinensis
Stomatograptus shiqianensis
Lingulata - Lingulida - Lingulidae
Lingula sp. Bruguiére 1797
Strophomenata - Strophomenida - Glyptomenidae
Linostrophomena convexa
Strophomenata - Strophomenida - Eopholidostrophiidae
Mesopholidostrophia sp. Williams 1950
Strophomenata - Strophomenida - Douvillinidae
Cymostrophia sp. Caster 1939
Strophomenata - Strophomenida - Aegiromenidae
Aegiria grayi (Davidson 1849)
recombined as Jonesea grayi
Strophomenata - Strophomenida
Spinochonetes notata
Strophomenata - Orthotetida - Chilidiopsidae
Valdaria sp. Bassett and Cocks 1974
Rhynchonellata - Atrypida - Atrypinidae
Nalivkinia rongxiensis
Rhynchonellata - Atrypida - Septatrypidae
Atrypoidea sp. Mitchell and Dun 1920
Dubaria sp.
synonym of Septatrypa
Atrypopsis rongxiensis
synonym of Septatrypa
Rhynchonellata - Atrypida - Glassiidae
Cryptatrypa sp.
synonym of Glassia
Rhynchonellata - Spiriferida - Delthyrididae
Howellella shiqianensis
Rhynchonellata - Spiriferida - Adolfiidae
Nikiforovaena sp.
Rhynchonellata - Spiriferida - Cyrtiidae
Striispirifer sp. Cooper and Muir-Wood 1951
Xinanospirifer sp.
Eospirifer sp. Schuchert 1913
Plicocyrtia sp.
Rhynchonellata - Pentamerida - Virgianidae
Brevilamnulella sp. Amsden 1974
Rhynchonellata - Athyridida - Nucleospiridae
Nucleospira pulchra
Nucleospira calypta
Rhynchonellata - Orthida - Draboviidae
Salopinella minuta
synonym of Salopina
Bivalvia - Cyrtodontida - Stolidotidae
? Mila sp. Barrande 1881
Bivalvia - Modiomorphida - Modiomorphidae
Modiomorpha crypta
Gastropoda - Murchisoniina - Hormotomidae
Hormotoma sp. (Salter 1859)
Cephalopoda - Oncocerida - Trimeroceratidae
Pentameroceras sp. Hyatt 1884
Stenogomphoceras sp. Foerste 1930
Trimeroceras sp. Hyatt 1884
Cephalopoda - Oncocerida - Nothoceratidae
Mixosiphonocerina sp. Chen et al. 1981
Piestoocerina sp. Chen et al. 1981
Cephalopoda - Actinocerida
Parahelenites sp. Chen and Liu 1974
Cephalopoda - Actinocerida - Armenoceratidae
Kailiceras sp. Chen and Liu 1974
Cephalopoda - Actinocerida - Parahelenitidae
Eushantungoceras sp. Shimizu and Obata 1935
Cephalopoda - Protobactritidae
Protobactrites sp. Hyatt 1900
Cephalopoda - Paraphragmitidae
Lyecoceras sp. Mutvei 1957
Paraphragmites sp. Flower 1943
Cephalopoda - Orthocerida - Eriditidae
Euvirgoceras sp. Chen 1974
Cephalopoda - Orthocerida - Sichuanoceratidae
Sichuanoceras sp. Chang 1962
Neosichuanoceras sp. Chen et al. 1981
Cephalopoda - Orthocerida - Orthodochmioceratidae
Actinodochmioceras sp. Chen 1981
Orthodochmioceras sp. Chen et al. 1981
Cephalopoda - Orthocerida - Kionoceratidae
Ohioceras sp. Shimizu and Obata 1935
Cephalopoda - Orthocerida - Orthoceratidae
Pedanochonoceras sp. Chen et al. 1981
Calorthoceras sp. Chen et al. 1981
Trilobita - Proetida - Proetidae
Latiproetus mucronatus
Trilobita - Phacopida - Encrinuridae
Rongxiella globosa
Senticucullus spinicaudatus
corrected from "Senticuculus"
Encrinuroides sp. Reed 1931
Kailia quadrisulcata
Kailia intersulcata
Coronocephalus rongxiensis Chang 1974
Coronocephalus tenuisulcatus Chang 1974
see common names

Geography
Country:China State/province:Sichuan County:Xiushan
Coordinates: 28.6° North, 108.9° East (view map)
Paleocoordinates:6.3° North, 126.7° East
Basis of coordinate:based on political unit
Geographic resolution:basin
Time
Period:Silurian Epoch:Llandovery
Stage:Telychian 10 m.y. bin:Silurian 1
*Epoch:Late/Upper Llandovery - Early/Lower Wenlock
*International age/stage:Late/Upper Telychian - Sheinwoodian
Key time interval:Telychian
Age range of interval:438.50000 - 433.40000 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Formation:Xiushan Member:Upper
Stratigraphic resolution:member
Stratigraphy comments: Except where otherwise stated, ref. 7624 uses Lower Silurian as equivalent to Llandovery, Middle Silurian as equivalent to Wenlock, and Upper Silurian as equivalent to Ludlow plus Pridoli. "The age of the Xiushan Formation is still an open question...On the chart we place the lower member in the latest Llandovery and the upper member in the latest Llandovery to early Wenlock." (Formation overlies Rongxi Fm., which is regarded as Telychian.) More recent data puts in in Telychian only, as the overlying Huixingshao is considered Telychian (PJW 2018-04-22).
Lithology and environment
Primary lithology: "shale"
Secondary lithology: mudstone
Lithology description: "The Upper Member...is composed mainly of shale, mudstone, and siltstone intercalated with limestone lenses. It has a thickness of 298 m and is rich in [fossils]..."
Environment:marine indet.
Geology comments: Correlation chart indicates BA2-3 based on both shelly and graptolitic faunas.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils,mesofossils
Collection methods and comments
Reason for describing collection:biostratigraphic analysis
Metadata
Also known as:Type section of Xiushan Formation (Upper Member)
Database number:27908
Authorizer:M. Foote Enterer:M. Foote
Modifier:P. Wagner Research group:marine invertebrate
Collections that are a subset of this one:25734
Created:2003-01-16 12:01:27 Last modified:2018-04-26 13:06:54
Access level:the public Released:2003-01-16 12:01:27
Creative Commons license:CC BY
Reference information

Primary reference:
7624. E.-z. Mu, A. J. Boucot, X. Chen and J.-y. Rong. 1986. Correlation of the Silurian rocks of China. In A. J. Boucot and W. B. N. Berry (eds.), Geological Society of America Special Paper 202:1-80 [M. Foote/M. Foote/P. Wagner]