Yijianfang section, Cycle B (Ordovician of China)

Where: China (40.1° N, 78.8° E: paleocoordinates 31.2° S, 117.8° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Lenodus crassus conodont zone, Middle Member (Yijianfang Formation), Darriwilian (467.3 - 458.4 Ma)

• Lenodus variabilis zone

• formation-level stratigraphic resolution

Environment/lithology: reef, buildup or bioherm; packstone and grainstone

Size classes: macrofossils, mesofossils

Primary reference: H. Rong, Y. Jiao, Y. Wang, L. Wu, and R. Wang. 2013. Distribution and geologic significance of Girvanella within the Yijianfang Ordovician reef complexes in the Bachu area, West Tarim Basin, China. Facies [W. Kiessling/M. Krause]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 154901: authorized by Wolfgang Kiessling, entered by Mihaela Krause on 18.03.2014

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
Hormogoneae
 Oscillatoriales - Girvanellaceae
Girvanella sp. Nicholson and Etheridge 1878
Cephalopoda
 Endocerida - Endoceratidae
Dideroceras sp. Flower 1950
Chisiloceras sp. Gortani 1934
 Tarphycerida - Estonioceratidae
Aphetoceras sp. Hyatt 1894
Tragoceras sp. Remelé 1890
 Ellesmerocerida - Protocycloceratidae
Gastropoda
 Euomphalina - Macluritidae
Maclurites sp. Le Sueur 1818 snail
 Euomphalina - Lesueurillidae
Lesueurilla sp. Koken 1898 snail
Rhynchonellata
 Pentamerida - Camerellidae
Strophomenata
 Orthotetida - Triplesiidae
Triplesia sp. Hall 1859
Trilobita
 Corynexochida - Illaenidae
Illaenus sp. Dalman 1827 trilobite
 Lichida - Lichidae
Lyralichas sp. Weber 1948 trilobite
 Harpetida - Harpetidae
Scotoharpes sp. Lamont 1948 trilobite
 Asaphida - Remopleurididae
Remopleurides sp. Portlock 1843 trilobite
 Asaphida - Nileidae
Nileus sp. Dalman 1827 trilobite
 Phacopida - Cheiruridae
"Kawina sp." = Kawina, "Cydonocephalus sp." = Kawina
"Kawina sp." = Kawina Barton 1916 trilobite
"Cydonocephalus sp." = Kawina Barton 1916 trilobite
Radiocyatha
  - Soanitidae
Calathium sp. Billings 1865