Dicoelosia-Skenidioides Comm. Grp., Erdaogou Fm., Erdaogou, Yongji Co., Jilin (Silurian of China)

Where: Jilin, China (43.7° N, 126.5° E: paleocoordinates 13.7° S, 116.1° E)

• coordinate based on political unit

• local area-level geographic resolution

When: Erdaogou Formation, Pridoli (423.0 - 419.2 Ma)

• Lower part of formation.

• member-level stratigraphic resolution

Environment/lithology: marine; calcareous shale and limestone

• "Erdaogou lies above a BA 3 unit and underlies a BA 4-5 unit; this comm. may represent BA 4, and a relatively normal, quiet water environment."
• "calcareous shale with limestone lenses...disarticulated valves, occurring as casts and molds, in the clastic rocks"

Primary reference: Y. Wang, A. J. Boucot, J.Y. Rong and X.C. Yang. 1987. Community paleoecology as a geologic tool: the Chinese Ashgillian-Eifelian (latest Ordovician through early Middle Devonian) as an example. Geological Society of America Special Paper 211:1-100 [M. Foote/M. Foote/M. Foote]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 25759: authorized by Michael Foote, entered by Michael Foote on 24.09.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Trilobita
  -
Trilobita indet.
Trilobita indet. Walch 1771 trilobite
Rhynchonellata
 Athyridida - Nucleospiridae
Nucleospira sp.
Nucleospira sp. Hall 1859
 Protorthida - Skenidiidae
Skenidioides sp.
Skenidioides sp. Schuchert and Cooper 1931
 Spiriferida - Delthyrididae
Delthyris sp.
Delthyris sp. Dalman 1828
 Orthida - Dicoelosiidae
Dicoelosia sp.
Dicoelosia sp. King 1850
 Orthida - Dalmanellidae
Isorthis sp.
Isorthis sp. Kozlowski 1929
 Atrypida - Atrypidae
Atrypa sp.
Atrypa sp. Dalman 1828
 Atrypida - Lissatrypidae
Lissatrypa sp.
Lissatrypa sp. Twenhofel 1914
Strophomenata
 Orthotetida - Chilidiopsidae
"Coolinia sp." = Fardenia (Coolinia)
"Coolinia sp." = Fardenia (Coolinia) Bancroft 1949
 Strophomenida - Rafinesquinidae
Leptaena sp.
Leptaena sp. Dalman 1828
 Strophomenida - Strophochonetidae
Protochonetes sp.
Protochonetes sp. Muir-Wood 1962
Anthozoa
 Tabulata -
Tabulata indet.
Tabulata indet. tabulate coral
 Rugosa -
Rugosa indet.
Rugosa indet. horn coral
 Cystiphyllida - Goniophyllidae
Rhizophyllum sp.
Rhizophyllum sp. Lindström 1866 horn coral
 Stauriida - Spongophyllidae
Spongophyllum sp.
Spongophyllum sp. Milne-Edwards and Haime 1851 horn coral
 Stauriida - Mucophyllidae
Mucophyllum sp.
Mucophyllum sp. Etheridge 1894 horn coral
 Stauriida - Disphyllidae
Disphyllum sp.
Disphyllum sp. Fromentel 1861 horn coral