DuoWenZhuang Grp., DuoWenZhuang, HaiNanDao Province, China (Ordovician of China)

Where: HaiNanDao, China (20.0° N, 109.0° E: paleocoordinates 13.6° N, 120.8° E)

• local area-level geographic resolution

When: Ashgill (449.5 - 443.7 Ma)

• DuoWenZhuang Group

Environment/lithology: shoreface; lithified, calcareous sandstone and siltstone

• Quartz sandstone, siltstone, muddy shale, and dolostone

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 4681: authorized by Arnold Miller, entered by Phil Novack-Gottshall on 16.08.1999

Creative Commons license: CC BY (attribution)

Taxonomic list

 Auloporida - Syringoporidae
Syringopora sp. Goldfuss 1826 tabulate coral
 Heliolitida - Heliolitidae
Heliolites sp. Dana 1846 tabulate coral
 Phacopida - Encrinuridae
Coronocephalus sp. Grabau 1924 trilobite
Encrinuraspis sp. Webby et al. 1970 trilobite
 Atrypida - Atrypinidae
"Zanclorhyncha sp." = Eospirigerina
"Zanclorhyncha sp." = Eospirigerina Schuchert and Cooper 1930
 Rhynchonellida - Ancistrorhynchidae
"Ancistrorhynchia sp." = Ancistrorhyncha
"Ancistrorhynchia sp." = Ancistrorhyncha Ulrich and Cooper 1942