Unit 25, Honghuayuan Fm., Guangyingqiao and Qijiang, Sichuan Prov., China (Ordovician of China)

Where: Sichuan, China (29.0° N, 107.0° E: paleocoordinates 17.9° N, 139.5° E)

• local area-level geographic resolution

When: Honghuayuan Formation, Arenig (478.6 - 466.0 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: deep subtidal shelf; lithified limestone

• limestone

Primary reference: R. Wang. 1981. Stratigraphic Summary of the Southwestern Region of China. Institute of Geology and Mine Deposit at Chengdu, Ministry of Geology (not published, copy of article deposited with A. I. Miller at the University of Cincinnati, received through S. Mao) 14-61 [A. Miller/P. Novack-Gottshall]more details

PaleoDB collection 5416: authorized by Arnold Miller, entered by Phil Novack-Gottshall on 02.10.1999

Creative Commons license: CC BY (attribution)

Taxonomic list

Gastropoda
 Euomphalina - Ophiletidae
Ecculiomphalus sp. Portlock 1843 snail
Cephalopoda
 Actinocerida -
Hopeioceras sp. Shimuzu and Obata 1936
 Endocerida - Cyrtendoceratidae
Cyrtovaginoceras sp. Kobayashi 1934
Strophomenata
 Billingsellida - Polytoechiidae
Tritoechia sp. Ulrich and Cooper 1936
Rhynchonellata
 Orthida - Hesperonomiidae
Hesperonomia sp. Ulrich and Cooper 1936
Trilobita
 Asaphida - Asaphidae
Psilocephalina sp. Hsu 1948 trilobite