GanGouChun Fm., Gangouchun, HaiNanDao Province, China (Ordovician of China)

Where: HaiNanDao, China (18.0° N, 110.0° E: paleocoordinates 13.8° N, 118.5° E)

• local area-level geographic resolution

When: Gangouchun Formation, Ashgill (449.5 - 443.7 Ma)

• formation-level stratigraphic resolution

Environment/lithology: shallow subtidal; lithified, gray, silty shale and limestone

• Gray limestone interbedded with silty shale, sandstone, siltstone and fine-grained breccia

Primary reference: R. Jin and S. Cai. 1988. Regional Geology of GuangDong Province. Special Publication of China Minister of Geology and Mining, No.9. Geology Publishing House 1-? [A. Miller/P. Novack-Gottshall]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 4684: authorized by Arnold Miller, entered by Phil Novack-Gottshall on 16.08.1999

Creative Commons license: CC BY (attribution)

Taxonomic list

Bivalvia
 Modiomorphida - Modiomorphidae
Cymatonota sp. Ulrich 1893 clam
Modiolopsis sp. Hall 1847 clam
 Solemyida - Ctenodontidae
Tancrediopsis sp. Beushausen 1895 clam
 Nuculida - Nuculidae
Nuculoidea sp. Williams and Berger 1916 nut clam
 Nuculida - Praenuculidae
Similodonta sp. Soot-Ryen 1964 clam
Strophomenata
 Strophomenida - Sowerbyellidae
Sowerbyella sp. Jones 1928
 Strophomenida - Leptellinidae
Leptelloidea sp. Jones 1928
Rhynchonellata
 Orthida - Plectorthidae
Mimella sp. Cooper 1930
 Orthida - Dalmanellidae
Dalmanella sp. Hall and Clarke 1892
 Atrypida - Septatrypidae
 Atrypida - Anazygidae
"Hallina sp." = Anazyga
"Hallina sp." = Anazyga Davidson 1882
 Atrypida - Atrypinidae
"Zanclorhyncha sp." = Eospirigerina
"Zanclorhyncha sp." = Eospirigerina Schuchert and Cooper 1930
Stenolaemata
 Trepostomata - Batostomellidae
Batostomella sp. Bassler 1911
Trilobita
 Asaphida - Remopleurididae
Remopleurides sp. Portlock 1843 trilobite
 Corynexochida - Illaenidae
Illaenus sp. Dalman 1827 trilobite
 Phacopida - Encrinuridae
Encrinurus sp. Emmrich 1844 trilobite
Encrinuroides sp. Reed 1931 trilobite
 Phacopida - Cheiruridae
Parisoceraurus sp. Zhou 1977 trilobite
 Phacopida - Calymenidae
Calymene sp. Brongniart 1822 trilobite
Pterobranchia
 Graptoloidea - Retiolitidae