PBDB Collection

Top of upper member, 1.5 km east of Daihua (Devonian of China)

Where: Guizhou, China (25.7° N, 106.4° E: paleocoordinates 2.5° S, 104.4° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: upper Member (Daihua Formation), Late/Upper Famennian (364.7 - 360.7 Ma)

• The upper member is 35.4 m thick.

• member-level stratigraphic resolution

Environment/lithology: basinal (); lithified, gray limestone

• Gray dense limestone. "Quiet and deeper water...aphotic zone of rather deep water [because trilos are all blind]."

Size class: macrofossils

Primary reference: L. -W. Xiang. 1981. Some Late Devonian trilobites of China. Special Paper Geological Society of America 187:183-191 [J. Alroy/M. Sommers/M. Uhen]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 3954: authorized by John Alroy, entered by Mike Sommers on 12.08.1999, edited by Pete Wagner

Creative Commons license: CC BY (attribution)

Taxonomic list

• "...abundant ammonoids and numerous trilobites are concentrated at the top [of the member]."

Show authors, comments, and common names

Cephalopoda
Goniatitida - Prionoceratidae	Imitoceras substriatum Imitoceras substriatum ammonite
Goniatitida - Sporadoceratidae	Sporadoceras muensteri Sporadoceras muensteri von Buch 1832 ammonite
Clymeniida - Wocklumeriidae	Wocklumeria sphaeroides Wocklumeria sphaeroides Richter 1848 ammonite
Clymeniida - Parawocklumeriidae	Parawocklumeria distorta, Parawocklumeria paradoxa Parawocklumeria distorta Tietze 1871 ammonite Parawocklumeria paradoxa Wedekind 1918 ammonite
Clymeniida - Kosmoclymeniidae	Kosmoclymenia tabulata, Kosmoclymenia undulata Kosmoclymenia tabulata ammonite Kosmoclymenia undulata ammonite
Clymeniida - Glatziellidae	Glatziella helenae Glatziella helenae ammonite
Clymeniida - Cyrtoclymeniidae	Cyrtoclymenia perinvoluta Cyrtoclymenia perinvoluta ammonite
Clymeniida - Cymaclymeniidae	Cymaclymenia aurita, Cymaclymenia parinvolvens, Cymaclymenia spiralia, Cymaclymenia striata Cymaclymenia aurita ammonite Cymaclymenia parinvolvens ammonite Cymaclymenia spiralia ammonite Cymaclymenia striata Muenster 1832 ammonite
Trilobita
Phacopida - Phacopidae	Dianops quizhouensis n. sp. Dianops quizhouensis n. sp. Xiang 1981 trilobite sp. nov.
Proetida - Phillipsiidae	Chaunoproetus daihuanensis n. sp., Typhloproetus laevis Chaunoproetus daihuanensis n. sp. Xiang 1981 trilobite sp. nov. Typhloproetus laevis Xiang 1981 trilobite sp. nov.