Hongjingshao Formation, bed 42m (Cambrian of China)

Where: Yunnan, China (24.8° N, 102.8° E: paleocoordinates 36.6° N, 162.5° E)

• coordinate stated in text

• outcrop-level geographic resolution

When: Yunnanocephalus trilobite zone, Hongjingshao Formation, Early/Lower Cambrian (538.8 - 509.0 Ma)

• Cambrian Stage 3

• formation-level stratigraphic resolution

Environment/lithology: coastal; lithified, silty, sandy sandstone and lithified, muddy, sandy mudstone

• Hongjingshao Formation is marked by the first appearance of thick-bedded coarse sandstones (Fig. 1c). At the Xiazhuang section, only the lower part of the Hongjingshao Formation, ~50 m-thick sandstone and siltstone intercalated by a few layers of yellowish mudstone, is exposed. The soft-bodied fossils are uncovered from these intercalated mudstone layers.

Size class: macrofossils

Preservation: soft parts

Primary reference: H. Zeng, F. C. Zhao, Z. J. Yin, G. X. Li, and M. Y. Zhu. 2014. A Chengjiang-type fossil assemblage from the Hongjingshao Formation (Cambrian Stage 3) at Chenggong, Kunming, Yunnan. Chinese Science Bulletin 59(25):3169-3175 [L. Na/L. Na/L. Na]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 185939: authorized by Lin Na, entered by Lin Na on 25.05.2017

Creative Commons license: CC BY (attribution)

Taxonomic list

 Bradoriida -
 Redlichiida - Yunnanocephalidae
Yunnanocephalus yunnanensis Mansuy 1912 trilobite
 Redlichiida - Redlichiidae
 Redlichiida - Metadoxididae
Fuminaspis yunnanaspis Zhang et al. 1980 trilobite
 Redlichiida - Abadiellidae
Malongocephalus yunnanensis Zhang et al. 1980 trilobite
 Fuxianhuiida - Fuxianhuiidae
 Odaraiida - Pectocariidae
 Hallucishaniids -
Hallucigenia indet. Conway Morris 1977
 Selkirkiimorpha - Selkirkiidae
"Paraselkirkia sp." = Selkirkia
"Paraselkirkia sp." = Selkirkia Walcott 1911
 Kutorginida - Kutorginidae
Kutorgina chengjiangensis Zhang et al. 2007