Paibi section, bed 2 (Cambrian of China)

Where: Hunan, China (28.4° N, 109.5° E: paleocoordinates 26.3° N, 154.9° E)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Ptychagnostus atavus trilobite zone, Huaqiao Formation, Taijangian (509.0 - 504.5 Ma)

• bed 2: 0-2.8m

• bed-level stratigraphic resolution

Environment/lithology: slope; lithified dolomite and lithified, calcareous shale

• Jiangnan Slope Belt, lower slope environments
• grayish dark, thin- to medium-bedded, laminated dolostone, interbedded dark-gray, thin-bedded packstone and black shale

Size class: macrofossils

Primary reference: S. Peng and R. A. Robison. 2000. Agnostid biostratigraphy across the Middle-Upper Cambrian boundary in Hunan, China. Journal of Paleontology Memoir 53 [A. Miller/A. Hendy/A. Hendy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 49149: authorized by Austin Hendy, entered by Austin Hendy on 10.04.2005

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Artiopoda
 Agnostida - Ptychagnostidae
Ptychagnostus atavus, "Ptychagnostus gibbus" = Triplagnostus gibbus
Ptychagnostus atavus Tullberg 1880
"Ptychagnostus gibbus" = Triplagnostus gibbus Linnarsson 1869
 Agnostida - Agnostidae
? Agnostus babcocki
? Agnostus babcocki Peng and Robison 2000
 Agnostida - Spinagnostidae
Hypagnostus parvifrons
Hypagnostus parvifrons Linnarsson 1869